The story
- Proto-Indo-European*né
- Proto-Indo-European*n̥-
- Proto-Germanic*un-
- Proto-West Germanic*un-
- Old Englishun-
- Middle Englishun-
- Englishun-
- Proto-Italic*merks
- Latinmerx
- Latinmercor
- Latinmercāns
- Anglo-Normanmarchaunt
- Middle Englishmarchaunt
- Englishmerchant
- Proto-Indo-European*leyg-
- Proto-Germanic*līką
- Englishmerchantlike
- English todayunmerchantlike
From un- + merchantlike.
Etymology from Wiktionary, CC BY-SA 4.0.