Where does “eyeglass” come from?

Eyeglass comes from English eye and Middle English glæs, which derives from Old English glæs via Proto-Germanic augô, ultimately tracing to Proto-Indo-European roots gʰel- and h₂egʰ-.

eyeglass (English): An artificial lens, especially one of a pair; A...

Definitions

  1. An artificial lens, especially one of a pair; A...

Ancestry of “eyeglass”, step by step

eyeglass traces back through two separate lines of ancestry.

via English glass

StepLanguageWordMeaning
1EnglishglassAn amorphous solid, often transparent substance...
2Scottish Gaelicglasgreen; grey; lock
3Middle Irishglas
4Old Irishglasgreen, greenish; blue, green-blue, grey-blue; the...
5Proto-Celticglastosgreen, blue
6Proto-Indo-Europeanǵʰl̥h₃stós
7Proto-Indo-Europeanǵʰelh₃-to flourish; green, yellow

via English Eye

StepLanguageWordMeaning
1EnglishEyeA place name
2English-someCharacterized by some specific condition or...
3Middle English-somsome; having a specific quality
4Old Englishsumsome
5Proto-West Germanic*sumsome
6Proto-Germanicsumazsome (one), a certain (one)
7Proto-Indo-Europeansem-together, one

Words derived from “eyeglass

Every word from Proto-Indo-European ǵʰelh₃-Every word from Proto-Indo-European ǵʰl̥h₃stósEvery word from Proto-Celtic glastos
eyeglass — Etymology, Origin & Word History | Etymology Explorer