Etymology
Advertisement

demeanor (n.)

late 15c., demenure, "conduct, management, treatment, behavior toward someone," from obsolete Middle English demean, demeinen "to handle, manage, conduct," later "behave in a certain way, conduct oneself" (early 14c.), from Old French demener (11c.) "to guide, conduct; to live, dwell," from de- "completely" (see de-) + mener "to lead, direct," from Latin minari "to threaten," in Late Latin "to drive (a herd of animals);" see menace (n.). Meaning "behavior, bearing, deportment" is from late 15c. Spelling changed by influence of nouns in -or, -our.

updated on July 16, 2018

Advertisement
Advertisement
Definitions of demeanor from WordNet

demeanor (n.)
(behavioral attributes) the way a person behaves toward other people;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.