1510s, from Latin Virgilianus "of or characteristic of the Roman poet Virgil" (Publius Vergilius Maro, 70-19 B.C.E.). Also in Virgilian lots (Latin sortes Virgilianae), opening Virgil at random as an oracle.
viper
viperine
virago
viral
vireo
Virgilian
virgin
virginal
virginals
Virginia
virginity