The story
- Proto-Indo-European*dʰregʰ-der.?
- Latintrahere
- Vulgar Latin*tragīnāre
- Old Frenchtraïner
- Old Frenchtrain
- Middle Englishtrayne
- Englishtrain
- Proto-Indo-European*lewh₁-
- Proto-Indo-European*lewHs-
- Proto-Germanic*leusaną
- Proto-Germanic*lausaz
- English todaytrainless
Etymology from Wiktionary, CC BY-SA 4.0.