Where does “trouse” come from?
trouse (English) comes from Irish triús, from Middle Irish triubus, from Old Irish trebus, from Old French trebus, from Late Latin tubrucus, from Proto-Germanic *þeuhabrōks, from Proto-Indo-European bʰrēǵ- — to shine, shimmer.
trouse (English): brushwood; trousers
Ancestry of “trouse”, step by step