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

WORD ORIGIN

c.1500, "rough, stormy;" 1540s, "not manageable," from Latin intractabilis "not to be handled, unmanageable," from in- "not, opposite of" (see in- (1)) + tractabilis (see tractable). Related: Intractably.

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