Webster's Revised Unabridged Dictionary · 1913

Instimulate

Instimulate , transitive verb

[Prefix in- not + stimulate.]

Not to stimulate; to soothe; to quiet. [Obsolete] — Cheyne

Instimulate , transitive verb

[Latin instimulatus, p. p. instimulare to stimulate. See 1st In-, and Stimulate.]

To stimulate; to excite. [Obsolete] — Cockeram