[4] The Welsh shows the source of this word in gair, a word; gair-ol, wordy.
[5] The words of the latter row are not shapen, at once, from those of the first one. Such of the first as are not roots in -ing are fellow stems to the others. As, stem from the root sting, to be more or less stiff or steadfast: sting, a stang, a stake, a stick. Steg-me (Gr. stigma), stegm (stem). Stem is not from stick, but from the root.
[6] In Welsh avon, a river, is from a time-word meaning to go on.
‘Mi av i’r avon vawr rhag llosgi.’ (I will go into the great river ere I be burned.)