The complete list is as follows: | Use | Instead of | | abridgment | abridgement | | accouter | accoutre | | accurst | accursed | | acknowledgment | acknowledgement | | addrest | addressed | | adz | adze | | affixt | affixed | | altho | although | | anapest | anapaest | | anemia | anaemia | | anesthesia | anaesthesia | | anesthetic | anaesthetic | | antipyrin | antipyrine | | antitoxin | antitoxine | | apothem | apothegm | | apprize | apprise | | arbor | arbour | | archeology | archaeology | | ardor | ardour | | armor | armour | | artizan | artisan | | assize | assise | | ax | axe | | bans | banns | | bark | barque | | behavior | behaviour | | blest | blessed | | blusht | blushed | | brazen | brasen | | brazier | brasier | | bun | bunn | | bur | burr | | caliber | calibre | | caliper | calliper | | candor | candour | | carest | caressed | | catalog | catalogue | | catechize | catechise | | center | centre | | chapt | chapped | | check | cheque | | checker | chequer | | chimera | chimaera | | civilize | civilise | | clamor | clamour | | clangor | clangour | | clapt | clapped | | claspt | clasped | | clipt | clipped | | clue | clew | | coeval | coaeval | | color | colour | | colter | coulter | | commixt | commixed | | comprest | compressed | | comprize | comprise | | confest | confessed | | controller | comptroller | | coquet | coquette | | criticize | criticise | | cropt | cropped | | crost | crossed | | crusht | crushed | | cue | queue | | curst | cursed | | cutlas | cutlass | | cyclopedia | cyclopaedia | | dactyl | dactyle | | dasht | dashed | | decalog | decalogue | | defense | defence | | demagog | demagogue | | demeanor | demeanour | | deposit | deposite | | deprest | depressed | | develop | develope | | dieresis | diaeresis | | dike | dyke | | dipt | dipped | | discust | discussed | | dispatch | despatch | | distil | distill | | distrest | distressed | | dolor | dolour | | domicil | domicile | | draft | draught | | dram | drachm | | drest | dressed | | dript | dripped | | droopt | drooped | | dropt | dropped | | dulness | dullness | | ecumenical | oecumenical | | edile | aedile | | egis | aegis | | enamor | enamour | | encyclopedia | encyclopaedia | | endeavor | endeavour | | envelop | envelope | | Eolian | Aeolian | | eon | aeon | | epaulet | epaulette | | eponym | eponyme | | era | aera | | esophagus | oesophagus | | esthetic | aesthetic | | esthetics | aesthetics | | estivate | aestivate | | ether | aether | | etiology | aetiology | | exorcize | exorcise | | exprest | expressed | | fagot | faggot | | fantasm | phantasm | | fantasy | phantasy | | fantom | phantom | | favor | favour | | favorite | favourite | | fervor | fervour | | fiber | fibre | | fixt | fixed | | flavor | flavour | | fulfil | fulfill | | fulness | fullness | | gage | gauge | | gazel | gazelle | | gelatin | gelatine | | gild | guild | | gipsy | gypsy | | gloze | glose | | glycerin | glycerine | | good-by | good-bye | | gram | gramme | | gript | gripped | | harbor | harbour | | harken | hearken | | heapt | heaped | | hematin | haematin | | hiccup | hiccough | | hock | hough | | homeopathy | homoeopathy | | homonym | homonyme | | honor | honour | | humor | humour | | husht | hushed | | hypotenuse | hypothenuse | | idolize | idolise | | imprest | impressed | | instil | instill | | jail | gaol | | judgment | judgement | | kist | kissed | | labor | labour | | lacrimal | lachrymal | | lapt | lapped | | lasht | lashed | | leapt | leaped | | legalize | legalise | | license | licence | | licorice | liquorice | | liter | litre | | lodgment | lodgement | | lookt | looked | | lopt | lopped | | luster | lustre | | mama | mamma | | maneuver | manoeuver | | materialize | materialise | | meager | meagre | | medieval | mediaeval | | meter | metre | | mist | missed | | miter | mitre | | mixt | mixed | | mold | mould | | molder | moulder | | molding | moulding | | moldy | mouldy | | molt | moult | | mullen | mullein | | naturalize | naturalise | | neighbor | neighbour | | niter | nitre | | nipt | nipped | | ocher | ochre | | odor | odour | | offense | offence | | omelet | omelette | | opprest | oppressed | | orthopedic | orthopaedic | | paleography | palaeography | | paleolithic | palaeolithic | | paleontology | palaeontology | | paleozoic | palaeozoic | | paraffin | paraffine | | parlor | parlour | | partizan | partisan | | past | passed | | patronize | patronise | | pedagog | pedagogue | | pedobaptist | paedobaptist | | phenix | phoenix | | phenomenon | phaenomenon | | pigmy | pygmy | | plow | plough | | polyp | polype | | possest | possessed | | practise (v. and n.) | practice | | prefixt | prefixed | | prenomen | praenomen | | prest | pressed | | pretense | pretence | | preterit | preterite | | pretermit | praetermit | | primeval | primaeval | | profest | professed | | program | programme | | prolog | prologue | | propt | propped | | pur | purr | | quartet | quartette | | questor | quaestor | | quintet | quintette | | rancor | rancour | | rapt | rapped | | raze | rase | | recognize | recognise | | reconnoiter | reconnoitre | | rigor | rigour | | rime | rhyme | | ript | ripped | | rumor | rumour | | saber | sabre | | saltpeter | saltpetre | | savior | saviour | | savor | savour | | scepter | sceptre | | septet | septette | | sepulcher | sepulchre | | sextet | sextette | | silvan | sylvan | | simitar | cimeter | | sipt | sipped | | skilful | skillful | | sithe | scythe | | skipt | skipped | | slipt | slipped | | smolder | smoulder | | snapt | snapped | | somber | sombre | | specter | spectre | | splendor | splendour | | stedfast | steadfast | | stept | stepped | | stopt | stopped | | strest | stressed | | stript | stripped | | subpena | subpoena | | succor | succour | | suffixt | suffixed | | sulfate | sulphate | | sulfur | sulphur | | sumac | sumach | | supprest | suppressed | | surprize | surprise | | synonym | synonyme | | tabor | tabour | | tapt | tapped | | teazel | teasel | | tenor | tenour | | theater | theatre | | tho | though | | thoro | thorough | | thorofare | thoroughfare | | thoroly | thoroughly | | thru | through | | thruout | throughout | | tipt | tipped | | topt | topped | | tost | tossed | | transgrest | transgressed | | trapt | trapped | | tript | tripped | | tumor | tumour | | valor | valour | | vapor | vapour | | vext | vexed | | vigor | vigour | | vizor | visor | | wagon | waggon | | washt | washed | | whipt | whipped | | whisky | whiskey | | wilful | willful | | winkt | winked | | wisht | wished | | wo | woe | | woful | woeful | | woolen | woollen | | wrapt | wrapped |
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