Nicknames:
The only obvious choices are "Leg" and "Gacy" ... which kinda sounds like "gassy" ... so just call the kid Legacy, mmkay?
Famous people named Legacy:
Artist Legacy Russell.
Fun fact:
Eminem has a song called "Legacy."
More Inspiration:
110+ Unique Middle Names For Your One-Of-A-Kind Baby Girl, Boy Names That End In “Y”, Perfectly Patriotic Americana Baby Names, Patriotic Baby Names Inspired By Memorial Day, Wonderful Word Names Straight From The Dictionary, Unisex Names Perfect For Any Gender,