Where does “tetrathecal” come from?

tetrathecal (English) comes from English thecal, 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.

tetrathecal (English): Having four thecae

Definitions

  1. Having four thecae

Ancestry of “tetrathecal”, step by step

tetrathecal traces back through two separate lines of ancestry.

via English thecal

StepLanguageWordMeaning
1EnglishthecalOf or pertaining to a theca; Possessing a theca
2EnglishALInitialism of assembly language; Initialism of...
3Dutchalall, all of; already; yet
4Middle Dutchalall, all of; completely; even though, no matter...
5Old Dutchāl
6Proto-West Germanicallall
7Proto-Germanicallazall
8Proto-Indo-Europeanh₂él-to grow, nourish

via English tetra

StepLanguageWordMeaning
1EnglishtetraAny of numerous species of small South American...
2TranslingualTetragonopterus
3Ancient Greekπτερόνfeather; wing; Any winged creature
4Proto-Indo-Europeanpéth₂r̥wing; feather
5Proto-Indo-Europeanpeth₂-to spread out; to fly
Every word from Proto-Indo-European h₂él-Every word from Proto-Germanic allazEvery word from Proto-West Germanic all