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The Collaborative International Dictionary
Extimulate

Extimulate \Ex*tim"u*late\, v. t. [L. extimulatus, exstimulatus, p. p. of extimulare, exstimulare, to goad. See Stimulate.] To stimulate. [Obs.]
--Sir T. Browne.

Wiktionary
extimulate

vb. (context obsolete English) To stimulate.