incurvate
To bend (especially inwards); to give a curved shape to.
transitive
Mr. Flamsteed's measures were taken with a micrometer that pinches or clasps the opposite edges of a planet which would incurvate the rays one way
to have a curved or bent shape; to bend or curve inwards.
intransitive
Where it comes from
The verb is first attested in 1578, the adjective in 1647; borrowed from Latin incurvātus, perfect passive participle of incurvō, see -ate (adjective-forming suffix) and -ate (verb-forming suffix).
Adapted from the Wiktionary entry incurvate (CC BY-SA 4.0).