Squared
来自Big Physics
Middle English: shortening of Old French esquare (noun), esquarre (past participle, used as an adjective), esquarrer (verb), based on Latin quadra ‘square’.
etymonline
squared (adj.)
late 14c., "made square," past-participle adjective from square (v.). Meaning "drawn up in squares" is from 1660s. Of numbers, "multiplied by itself," from 1550s.
