from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To take careful thought or think carefully about; ponder. See Synonyms at think.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To meditate, to ponder, to think deeply.
- v. To consider, to devise.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To engage in continuous thought; to think.
- transitive v. To think over; to plan.
from The Century Dictionary and Cyclopedia
- To think earnestly or studiously; reflect; ponder; meditate: as, to cogitate upon means of escape.
- To revolve in the mind; think about attentively; meditate on; hence, devise or plan: as, he is cogitating mischief.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
- v. consider carefully and deeply; reflect upon; turn over in one's mind
Latin cōgitāre, cōgitāt- : co-, intensive pref.; see co- + agitāre, to consider; see agitate.(American Heritage® Dictionary of the English Language, Fourth Edition)
From cōgitāt-, the perfect passive participial stem of the Latin cōgitō ("I think"). (Wiktionary)