Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

1590s, "protuberance caused by a blow;" 1610s as "a dull, solid blow;" see bump (v.). The dancer's bump and grind attested from 1940.

MORE RELATED WORDS FOR BUMP INTO

came across

verbencounter, find
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.