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“treasonably”
treasonably (adverb), more treasonably, most treasonably
Descriptive of how someone acts in a manner or style that is disloyal, faithless, and that is a betrayal of allegiance: Matthew was behaving in a treasonably odd manner that made people wonder if he was doing something illegal and disloyal to his family.
This entry is located in the following units:
-ably
(page 12)
dat-, dos-, dot-, dow-, don-, dit-
(page 7)