- reptile (n.)
- late 14c., from Old French reptile (early 14c.), from Late Latin reptile, neuter of reptilis (adj.) "creping, crawling," from rept-, past participle stem of repere "to crawl, creep," from PIE root *rep- "to creep, crawl" (cf. Lithuanian replioju "to creep"). Used of persons of low character from 1749.