misdeem

from The Collaborative International Dictionary of English v.0.48

Misdeem \Mis*deem"\, v. t.
   To misjudge. [Obs.] --Milton.
   [1913 Webster]

from Easton's 1897 Bible Dictionary

Misdeem
(Deut. 32:27, R.V.). The Authorized Version reads, "should
behave themselves strangely;" i.e., not recognize the truth,
misunderstand or mistake the cause of Israel's ruin, which was
due to the fact that God had forsaken them on account of their
apostasy.