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

WORD ORIGIN

mid-15c., on brest, from a- (1) + breast (n.); the notion is of "with breasts in line." To keep abreast in figurative sense of "stay up-to-date" is from 1650s.

MORE RELATED WORDS FOR ABREAST OF

au courant

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