[1520–30; brain + -ish1]This word is first recorded in the period 1520–30. Other words that entered Englishat around the same time include: accent, bias, junior, lapse, ticket-ish is a suffix used to form adjectives from nouns, with the sense of “belonging to”(British; Danish; English; Spanish); “after the manner of,” “having the characteristics of,” “like” (babyish; girlish; mulish); “addicted to,” “inclined or tending to” (bookish; freakish); “near or about” (fiftyish; sevenish)