-es

I

aff.

var. of -s II in verbs ending in s, z, ch, sh or post-consonantal

y: passes; buzzes; pitches; dashes; studies[/ex]

II

-es

aff.

var. of -s III in nouns ending in s, z, ch, sh, or post-consonantal y, and in nouns in f with v in the plural:

losses; fuzzes; riches; ashes; babies; sheaves[/ex]