[ mis-deem ]
/ mɪsˈdim /

verb (used with or without object)

to have a wrong opinion of; misjudge: to misdeem someone's ability.

Origin of misdeem

First recorded in 1250–1300, misdeem is from the Middle English word misdemen. See mis-1, deem
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019