-sy Definition

sē, zē
affix
Forming adjectives and nouns with diminutive, and often mocking or pejorative, force.
Artsy, cutesy.
Webster's New World
abbreviation

Steam Yacht - steam-powered yacht.

Wiktionary

Sailing Yacht - wind-powered yacht.

Wiktionary
School year.
Wiktionary

(astronomy) Seyfert galaxy, a type of AGN class of active galaxy.

Wiktionary

The ccTLD for Syria as assigned by the IANA.

Wiktionary
pronoun

Alternative form of Si.

Wiktionary