workhorse
work·horse
noun
1.
machine that performs dependably under heavy use
- “the IBM main frame computers have been the workhorse of the business world”
Origin
From Middle English werkehorse, equivalent to work + horse.
Related words
Narrower 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.