Where does “isoglossal” come from?

isoglossal (English) comes from English AL, from Dutch al, from Middle Dutch al, from Old Dutch āl, from Proto-West Germanic all, from Proto-Germanic allaz, from Proto-Indo-European h₂él- — to grow, nourish.

isoglossal (English): Relating to an isogloss

Definitions

  1. Relating to an isogloss

Ancestry of “isoglossal”, step by step

isoglossal traces back through two separate lines of ancestry.

via English AL

StepLanguageWordMeaning
1EnglishALInitialism of assembly language; Initialism of...
2Dutchalall, all of; already; yet
3Middle Dutchalall, all of; completely; even though, no matter...
4Old Dutchāl
5Proto-West Germanicallall
6Proto-Germanicallazall
7Proto-Indo-Europeanh₂él-to grow, nourish

via English isogloss

StepLanguageWordMeaning
1EnglishisoglossA line on a map indicating the geographical...
2Ancient Greekγλῶσσαa tongue; a language; the mouthpiece of a pipe
3Old Norseglottato grin, smile scornfully
4Proto-GermanicglutōnąTo stare; gawk
5Proto-Indo-Europeanǵʰel-to shine, glimmer, glow; to shimmer, gleam;...
Every word from Proto-Indo-European h₂él-Every word from Proto-Germanic allazEvery word from Proto-West Germanic all