Hag n. : A witch, sorceress, or enchantress; also, a wizard.

Hag n. : An ugly old woman.

Hag n. : A fury; a she-monster.

Hag n. : An eel-like marine marsipobranch (Myxine glutinosa), allied to the lamprey. It has a suctorial mouth, with labial appendages, and a single pair of gill openings. It is the type of the order Hyperotpeta. Called also hagfish, borer, slime eel, sucker, and sleepmarken.

Hag n. : The hagdon or shearwater.

Hag n. : An appearance of light and fire on a horse's mane or a man's hair.

Hag v. t. : To harass; to weary with vexation.

Hag n. : A small wood, or part of a wood or copse, which is marked off or inclosed for felling, or which has been felled.

Hag n. : A quagmire; mossy ground where peat or turf has been cut.

Example:
How to avoid looking like a dumpy flabby old Hag at our formal office Christmas Ball?

Taxonomy
hag, Old Hag, goddess, Boo Hag, free encyclopedia, fairy, sovereignty, Bakhtak, folklore, malevolent, old woman, Cailleach, Articles with unsourced statements, Carl Sagan, Badb, chest, belief, hero.

Defination from the web:
hag is a wizened old woman, or a kind of fairy or goddess having the appearance of such a woman, often found in folklore and children's tales ... This variety of hag is essentially identical to the Anglo-Saxon mæra — a being with roots in ancient Germanic superstition, and closely ...