Meaning

verb recruit for a union or organize into a union

verb form or join a union

originEtymology tree Proto-Indo-European *h₂ent- Proto-Indo-European *-s Proto-Indo-European *h₂éntsder. Proto-Germanic *anda- Proto-West Germanic *anda- Old English and- Old English on- Middle English on- English un- Proto-Indo-European *h₁ey- Proto-Indo-European *h₁éyti Proto-Hellenic *éimi Ancient Greek εἶμι (eîmi)der. English ion Proto-Indo-European *-id- Proto-Indo-European *-yéti…

Etymology from Wiktionary, CC BY-SA 3.0