súile gorma blue eyes.

súil eye
gorm blue

The adjective (gorm) follows the noun (súil) in Irish.

Nouns in Irish are either masculine or feminine and it is the adjective which shows which is which. The adjective "agrees" with the noun. Here the ~e of súile and the ~a of gorma indicate the plural. The singular is súil ghorm a blue eye. Seldom heard. Look out for súil dhubh a black eye. The h on gorm and dubh indicate that súil is feminine.