The story
- Proto-Indo-European*dʰregʰ-der.?
- Latintrahere
- Vulgar Latin*tragīnāre
- Old Frenchtraïner
- Old Frenchtrain
- Middle Englishtrayne
- Englishtrain
- Proto-Indo-European*ǵeh₂r-
- Proto-Germanic*karō
- Proto-West Germanic*karu
- Old Englishcaru
- Middle Englishcare
- Englishcare
- English todaytraincare
Etymology from Wiktionary, CC BY-SA 4.0.