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The Collaborative International Dictionary
Insoul

Insoul \In*soul"\, v. t. To set a soul in; reflexively, to fix one's strongest affections on. [Obs.]
--Jer. Taylor.

[He] could not but insoul himself in her.
--Feltham.

Wiktionary
insoul

vb. (context obsolete English) To set a soul in; reflexively, to fix one's strongest affections on.