[1590–1600; ‹ L viridis green, for *viridus, equiv. to vir(ēre) to be green + -idus-id4]This word is first recorded in the period 1590–1600. Other words that entered Englishat around the same time include: class, fixture, investment, jolt, volunteer-id is a suffix occurring in descriptive adjectives borrowed from Latin, often correspondingto nouns ending in -or. Other words that use the affix -id include: fetid, humid, pallid