also break-away, 1906 (n.), in reference to sports; 1930s (adj.) in reference to splinter groups; from the verbal phrase (attested from 1530s in the sense "disengage oneself abruptly, escape"); see break (v.) + away (adv.).
breadth
breadwinner
break
breakable
breakage
breakaway
break-dancing
breakdown
breaker
break-even
breakfast