from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Serenely deliberate, composed, and dignified in character or manner. See Synonyms at serious.
- transitive v. To administer a sedative to; calm or relieve by means of a sedative drug.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. in a composed and temperate state.
- v. to tranquilize by giving a sedative; to calm; to soothe; to induce sleep.
from the GNU version of the Collaborative International Dictionary of English
- adj. Undisturbed by passion or caprice; calm; tranquil; serene; not passionate or giddy; composed; staid.
from The Century Dictionary and Cyclopedia
- Quiet; composed; placid; serene; serious; undisturbed by passion: as, a sedate temper or deportment.
- Synonyms Imperturbable, serious, staid.
- To calm; compose.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. characterized by dignity and propriety
- v. cause to be calm or quiet as by administering a sedative to
- adj. dignified and somber in manner or character and committed to keeping promises
Latin sēdātus, past participle of sēdāre, to settle, calm; see sed- in Indo-European roots.
Back-formation from sedative and sedation.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin sedatum, past participle of sedare ("to settle"), causative of sedere ("to sit"). (Wiktionary)