straightjacket
straight·jac·ket
noun
Origin
Due to the confusion between the spelling of strait in straitjacket and the more common word straight; more at straight-laced § Etymology.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.