"make thick or thicker," 1620s, from Late Latin inspissatus, past participle of inspissare, from in- "in, into" (from PIE root *en "in") + Latin spissare "to thicken," related to spissus "thick" (see spissitude). Related: Inspissated; inspissating.
inspissate the tar so that it becomes pitch
The egg yolk will inspissate
inspiration
inspirational
inspire
inspired
inspirer
inspissate
inspissation
instability
instable
install
installation