-ad

1.
suffix forming nouns:
1 in collective numerals (myriad; triad).
2 in fem. patronymics (Dryad).
3 in names of poems and similar compositions (Iliad; Dunciad; jeremiad).
Etymology: Gk -as -ada
2.
suffix forming nouns (ballad; salad) (cf. -ADE(1)).
Etymology: F -ade