CHUM


Meaning of CHUM in English

/ tʃʌm; NAmE / noun

( old-fashioned , informal ) a friend :

an old school chum

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WORD ORIGIN

late 17th cent. (originally Oxford University slang, denoting a room-mate): probably short for chamber-fellow . Compare with comrade and crony .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.