1. (n.) The quality of withstanding hardship or stress; lastingness; perseverance\; continuance.

2. (n.) The act of bearing or suffering; a continuing under pain or distress without resistance, or without being overcome; sufferance; patience.

abidingness acceptance age antiquity application assiduity assiduousness bulldog tenacity changelessness concentration constancy continualness continuance continuation continuity decisiveness defeat of time defiance of time diligence diuturnity dogged perseverance doggedness durability durableness duration energy engrossment extension fidelity firmness fixedness forbearance forbearing forbearingness force fortitude frozenness guts gutsiness hardening hardiness heartiness immobility immovability immovableness immutability indefatigability indulgence industriousness industry insistence insistency intestinal fortitude invariability invariableness inveteracy lastingness lengthening lenience leniency lifetime long standing long-lastingness long-livedness long-sufferance long-suffering longanimity longevity loyalty lustihood lustiness maintenance might mightiness obstinacy patience patience of Job patientness perdurability perennation permanence permanency perpetualness perpetuation perpetuity perseverance persistence persistency pertinaciousness pertinacity plodding plugging potency power powerfulness preoccupation progress progression prolongation protraction pursuance quiescence relentlessness repetition resolution rigidity robustness ruggedness run sedulity sedulousness self-control single-mindedness singleness of purpose slogging solidity stability stalwartness stamina standing stasis staying power steadfastness steadiness stick-to-itiveness sticking power stoicism stoutness straight course strength strength of will stubbornness sturdiness sufferance survival survivance sustained action sustenance sweet reasonableness tenaciousness tenacity tirelessness tolerance toleration torpor toughness unchangeability unchangingness uninterrupted course unremittingness unswerving attention vigor vigorousness vitality waiting game waiting it out way