1.  excogitate(v = verb.creation) contrive, devise, forge, formulate, invent - come up with (an idea, plan, explanation, theory, or principle) after a mental effort; "excogitate a way to measure the speed of light"
is one way to create by mental act, create mentally
Derived forms noun excogitation₂, noun excogitation₁, noun excogitator₁
Sample sentences: Somebody ----s something

2.  excogitate(v = verb.cognition) chew over, contemplate, meditate, mull, mull over, muse, ponder, reflect, ruminate, speculate, think over - reflect deeply on a subject; "I mulled over the events of the afternoon"; "philosophers have speculated on the question of God for thousands of years"; "The scientist must stop to observe and start to excogitate"
is one way to cerebrate, cogitate, think
Derived form adjective excogitative₁
Sample sentences: Somebody ----s PP

   To think out; to find out or discover by thinking; to devise; to contrive. Stirling. [1913 Webster]
"This evidence . . . thus excogitated out of the general theory." [1913 Webster]

   To cogitate. Bacon. [1913 Webster]

excogitate, v.tr. think out; contrive.

Derivative:
excogitation n.

Etymology:
L excogitare excogitat- (as EX-(1), cogitare COGITATE)

VB  think, reflect, cogitate, excogitate, consider, deliberate, bestow thought upon, bestow consideration upon, speculate, contemplate, meditate, ponder, muse, dream, ruminate, brood over, con over, animadvert, study, bend the mind, apply the mind, digest, discuss, hammer at, weigh, perpend, realize, appreciate, fancy, trow, take into consideration, take counsel, commune with oneself, bethink oneself, collect one's thoughts, revolve in the mind, turn over in the mind, run over in the mind, chew the cud upon, sleep upon, take counsel of one's pillow, advise with one's pillow, rack one's brains, ransack one's brains, crack one's brains, beat one's brains, cudgel one's brains, set one's brain to work, set one's wits to work, harbor an idea, entertain an idea, cherish an idea, nurture an idea, take into one's head, bear in mind, reconsider, occur, present itself, suggest itself, come into one's head, get into one's head, strike one, flit across the view, come uppermost, run in one s head, enter the mind, pass in the mind, cross the mind, flash on the mind, flash across the mind, float in the mind, fasten itself on the mind, be uppermost in the mind, occupy the mind, have in one's mind, make an impression, sink into the mind, penetrate into the mind, engross the thoughts.

VB  imagine, fancy, conceive, idealize, realize, dream, dream of, dream up, give to airy nothing a local habitation and a name, create, originate, devise, invent, coin, fabricate, improvise, strike out something new, set one's wits to work, strain one's invention, crack one's invention, rack one's brains, ransack one's brains, cudgel one's brains, excogitate, brainstorm, give play, give the reins, give a loose to the imagination, give fancy, indulge in reverie, visualize, envision, conjure up a vision, fancy oneself, represent oneself, picture, picture-oneself, figure to oneself, vorstellen, float in the mind, suggest itself.