English
protrade
From pro- + trade.
Proto-Indo-European *pér ‘through’
Proto-Indo-European *pró ‘forwards, before’
Proto-Italic *prō ‘in front of, before’
Latin prō ‘in favor of, on behalf of’
English pro-
Proto-Indo-European *dreh₂- ‘to tread, walk, run’
…
Proto-West Germanic *tradu
Old Saxon trada ‘spoor, track’
Middle Low German trade ‘track, course’
Middle English trade ‘path, course of conduct’
English trade
Today it means
adj Supporting or favouring trade.
Language periods are conventional ranges, not dates for this word.
Etymograph / protrade