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The Collaborative International Dictionary
Incage

Incage \In*cage"\, v. t. [imp. & p. p. Incaged; p. pr. & vb. n. Incaging.] [Cf. Encage.] To confine in, or as in, a cage; to coop up. [Written also encage.] ``Incaged birds.''
--Shak.

Wiktionary
incage

vb. (alternative form of encage English)