guesstimate
guess·ti·mate
noun
verb
1.
estimate based on a calculation
Origin
Blend of guess + estimate.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.