Etymology
1. O.E.
glowan "to shine as if red-hot," from P.Gmc. base
*glo- (cf. O.S.
gloian, O.N.
gloa, O.H.G.
gluoen, Ger.
glühen "to glow"), from PIE
*ghlo-. First record of
glow-worm is from c.1320.
2. The verb is derived from Middle English glouen, glowen (“to give off heat and light without flame; of a thing: to be heated until red hot; to be brightly coloured; to shine brightly; (figurative) to be filled with emotion; of the face, etc.: to turn red, flush; etc.”), and then either:
3. * from Old English glōwan (“to glow”) (a strong verb), from Proto-West Germanic *glōan (“to glow”); or
4. * because the Middle English and modern English words are weak verbs, possibly from Old Norse *glówa, thought to be a variant of glóa (“to glow”), also a weak verb;
5. both from Proto-Germanic *glōaną (“to glow”), ultimately from Proto-Indo-European *ǵʰleh₁- (“to shine, glow; to be shining, glowing”). Possibly a doublet of glass.
6. The noun is derived from the verb.
7. cognates
8. * Dutch gloeien
9. * Finnish loistaa
10. * German glühen
11. * Norwegian glo
12. * Old Norse glóa (Danish glo, Icelandic glóa, Swedish glo)
13. * Saterland Frisian gloie, glöie, gluuje
14. * West Frisian gloeie See: Proto-Germanic '
*glōaną', Dutch '
gloeien', Finnish with old forms '
loistaa', German, old spelling '
glühen', Danish '
glo', Icelandic '
glóa', Swedish '
glo', Frisian, Saterlandic 'gloie'.
Verbs referencing "glow"
German, old spelling
glühen.