Noah Webster
Incrassate
INCRAS'SATE, verb transitive [Latin incrasso, incrassatus; in and crassus, thick.]
1. To make thick or thicker; to thicken; the contrary to attenuate.
2. In pharmacy, to make fluids thicker by the mixture of other substances less fluid, or by evaporating the thinner parts.
Acids dissolve or attenuate; alkalies precipitate or incrassate
INCRAS'SATE, verb intransitive To become thick or thicker.
INCRAS'SATE