GILL (6)

Gill (?), n. [[Abbrev. from Gillian.]] 1. 1. A young woman; a sweetheart; a flirting or wanton girl. “Each Jack with his Gill.” B. Jonson.
2. 2. (Bot.) The ground ivy (Nepeta Glechoma); — called also gill over the ground, and other like names.
3. 3. Malt liquor medicated with ground ivy.
Gill ale. (a) Ale flavored with ground ivy. (b) (Bot.) Alehoof.