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

WORD ORIGIN

1530s, "to unload" (transitive), from un- (2) "reverse of" + burden (v.). Cf. German entbürden. Reflective sense is recorded from 1580s. Related: Unburdened; unburdening.

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