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

WORD ORIGIN

1868, from French expertise (16c.) "expert appraisal, expert's report," from expert (see expert). Earlier in same sense was expertness (c.1600).

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