The Collaborative International Dictionary
Cooptate
Cooptate \Co*["o]p"tate\, v. t. [L. co["o]ptatus, p. p. of
co["o]tare to elect to something; co- + optare to choose.]
To choose; to elect; to co["o]pt. [Obs.]
--Cockeram.
Wiktionary
cooptate
vb. (context obsolete English) To choose; to elect.