stiffen

[ stif-uh n ]
/ ˈstɪf ən /

verb (used with object)

to make stiff.

verb (used without object)

to become stiff.
to become suddenly tense, rigid, or taut, as in bracing oneself for or drawing back from shock, fear, or displeasure: He stiffened, expecting to hear the worst.

Origin of stiffen

First recorded in 1490–1500; stiff + -en1

OTHER WORDS FROM stiffen

o·ver·stiff·en, verb un·stiff·ened, adjective

Example sentences from the Web for stiffen

British Dictionary definitions for stiffen

stiffen
/ (ˈstɪfən) /

verb

to make or become stiff or stiffer
(intr) to become suddenly tense or unyielding

Derived forms of stiffen

stiffener, noun