oorlog (plural oorloë)
From Middle Dutch orloge, from Old Dutch *urlage. In this word, two Germanic words merged, both having the prefix ur- (modern Dutch oor and oer, with the former kept in compounds like oorzaak (“cause, driver”) and oorsprong (“origin”), and the latter borrowed from German). The first word was derived from Proto-Germanic *uzlagą meaning "fate, destiny", with *laga- related to modern Dutch leggen (“to lay”). The second word was derived from Proto-Germanic *uzleugō meaning "war", with *leug- meaning "oath".