Meaning & Origin
Abbreviation of Seyfert galaxy, a type of AGN class of active galaxy.
Sy is a boy's baby name of Old English origin, a traditional short form of Simon (from Hebrew, meaning 'he has heard') or Cyrus (from Persian, meaning 'sun' or 'throne'). As a standalone given name, Sy has the laconic confidence of classic one-syllable names — nothing wasted, everything intentional.
Sy Richardson and other performers have carried this name with quiet cool. In an era of elaborate names, Sy's brevity is its own kind of statement: some people just don't need more than two letters.