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

WORD ORIGIN

c.1400, from Middle French intense (13c.), from Latin intensus "stretched, strained, tight," originally past participle of intendere "to stretch out, strain" (see intend); thus, literally, "high-strung." Related: Intensely.

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