Main Entry: ¹since

Pronunciation: \ˈsin(t)s\

Function: adverb

Etymology: Middle English sins, contraction of sithens, from sithen, from Old English siththan, from sīth tham after that, from sīth after, late + tham, dative of thæt that; akin to Old High German sīd later and perhaps to Latin setius to a lesser degree

Date: 15th century

1 : from a definite past time until now <has stayed there ever since>
2 : before the present time : ago <long since dead>
3 : after a time in the past : subsequently <has since become rich>