Where does “firmoss” come from?

firmoss (English) comes from English fir, from Middle English firre, from Old English fyrh, from Proto-Germanic furhu, from Proto-Germanic furhō, from Proto-Indo-European pérkus, from Proto-Indo-European perkʷ- — oak.

firmoss (English): Any of a group of lycophyte plants of the genus...

Definitions

  1. Any of a group of lycophyte plants of the genus...

Ancestry of “firmoss”, step by step

firmoss traces back through two separate lines of ancestry.

via English fir

StepLanguageWordMeaning
1EnglishfirA conifer of the genus "Abies"; Any pinaceous...
2Middle Englishfirrefir (Abies spp.)
3Old Englishfyrhfir, pine
4Proto-Germanicfurhufir; pine
5Proto-Germanicfurhōfir; pine; forest
6Proto-Indo-Europeanpérkusoak
7Proto-Indo-Europeanperkʷ-oak

via English moss

StepLanguageWordMeaning
1EnglishmossAny of various small, green, seedless plants...
2Middle Englishmosmush, pulp, porridge
3Old Englishmosmoss; food, nourishment, victuals
4Proto-Germanic*mōs
5Proto-Germanicmōsąwet food, mush, porridge; food, victuals
6Proto-Indo-Europeanmeh₂d-to be wet, to become wet; to meet, approach,...
Every word from Proto-Indo-European perkʷ-