- indurate (v.)
- 1590s (transitive) "make hard;" 1620s (intransitive) "grow harder," from Latin induratus, past participle of indurare "to make hard, harden" (see endure). Related: Indurated.
- indurate (adj.)
- "hardened, made hard," early 15c., from Latin induratus, past participle of indurare "to make hard, harden" (see endure).
