Definition from Wiktionary, the free dictionary
See also ally
Proper noun 
- A diminutive of the female given names Alison, Alice and Alexandra.
- A diminutive of the male given name Alfred or of other names beginning with Al-.
- 1880 Alfred Tennyson: To Alfred Tennyson, My Grandson:
- Golden-hair'd Ally whose name is one with mine,
- Crazy with laughter and babble and earth's new wine