Origin of guesstimateblend of guess and estimate
transitive verb-·mat·ed, -·mat·ing
Origin of guesstimateBlend of guess estimate
(third-person singular simple present guesstimates, present participle guesstimating, simple past and past participle guesstimated)
- (intransitive) To make a guesstimate.
- To make a guesstimate of a specific quantity.