girly (adj.)youdaoicibaDictYouDict[girly 词源字典]
"girl-like," 1866, from girl + -y (2). Reduplicated form girly-girly (adj.) is recorded from 1883; as a noun from 1882.[girly etymology, girly origin, 英语词源]
girly (n.)youdaoicibaDictYouDict
girlie, "little girl," 1860, from girl + -y (3). Another diminutive was girleen (1836) with an Irish ending.