Webster's Revised Unabridged Dictionary · 1913

Incrassate

Incrassate , transitive verb

[Latin incrassatus, past participle of incrassare; pref. in- in + crassus thick.]

To make thick or thicker; to thicken; especially, in pharmacy, to thicken (a liquid) by the mixture of another substance, or by evaporating the thinner parts.
Acids dissolve or attenuate; alkalies precipitate or incrassate. — Sir I. Newton
Liquors which time hath incrassated into jellies. — Sir T. Browne

Incrassate , intransitive verb

To become thick or thicker.

Incrassate , adjective

[Latin incrassatus, p. p.]

1.
Made thick or thicker; thickened; inspissated.
2.
(Botany) Thickened; becoming thicker. — Martyn
3.
(Zoology) Swelled out on some particular part, as the antenna of certain insects.

Also: Incrassated