granite (n.) Look up granite at
1640s, from French granit(e) (17c.) or directly from Italian granito "granite," originally "grained," past participle adjective from granire "granulate, make grainy," from grano "grain," from Latin granum "grain" (see grain (n.)). In reference to the appearance of the rock. Used figuratively for "hardness" (of the heart, head, etc.) from 1839. New Hampshire, U.S., has been the Granite State since at least 1825.