Also found in: Medical.
var. of syn- before s followed by a consonant and before z: systaltic; syzygy.
a suffix forming nouns or adjectives, usu. as a diminutive of the base word (bitsy; footsies; halvsies); adjectives formed with -sy may be ironic, implying that the quality in question is self-consciously assumed or feigned (artsy; cutesy; folksy).
[of uncertain orig.]