- chum (n.1)
[chum 词源字典]
- "friend," 1680s, originally university slang for "roommate," from alternative spelling of cham, short for chamber(mate); typical of the late-17c. fondness for clipped words. Among derived forms used 19c. were chumship; chummery "shared bachelor quarters," chummage "system of quartering more than one to a room."[chum etymology, chum origin, 英语词源]
- chum (n.2)
- "fish bait," 1857, perhaps from Scottish chum "food."