[1555–65; convert + -ite1]This word is first recorded in the period 1555–65. Other words that entered Englishat around the same time include: clearance, corona, probe, review, straddle-ite is a suffix of nouns denoting esp. persons associated with a place, tribe, leader,doctrine, system, etc. (Campbellite; Israelite; laborite); minerals and fossils (ammonite; anthracite); explosives (cordite; dynamite); chemical compounds, esp. salts of acids whose names end in -ous (phosphite; sulfite); pharmaceutical and commercial products (vulcanite); a member or component of a part of the body (somite)