Webster's Revised Unabridged Dictionary · 1913

Hag

Hag (hag) , noun

[Old English hagge, hegge, witch, hag, Anglo-Saxon hagtesse; akin to Old High German hagazussa, German hexe, Dutch heks, Danish hex, Swedish haxa. The first part of the word is prob. the same as English haw, hedge, and the orig. meaning was perh., wood woman, wild woman. r12.]

1.
A witch, sorceress, or enchantress; also, a wizard. [Obsolete]
[Silenus] that old hag. — Golding
2.
An ugly old woman. — Dryden
3.
A fury; a she-monster. — Crashaw
4.
(Zoology) 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 Hyperotreta. Called also hagfish, borer, slime eel, sucker, and sleepmarken.
5.
(Zoology) The hagdon or shearwater.
6.
An appearance of light and fire on a horse's mane or a man's hair. — Blount
Collocations (2)
Hag moth (Zoology) , a moth (Phobetron pithecium), the larva of which has curious side appendages, and feeds on fruit trees.
Hag's tooth (Nautical) , an ugly irregularity in the pattern of matting or pointing.

Hag (hagd) , transitive verb

To harass; to weary with vexation.
How are superstitious men hagged out of their wits with the fancy of omens. — L'Estrange

Hag , noun

[Scot. hag to cut; compare English hack.]

1.
A small wood, or part of a wood or copse, which is marked off or inclosed for felling, or which has been felled.
This said, he led me over hoults and hags; Through thorns and bushes scant my legs I drew. — Fairfax
2.
A quagmire; mossy ground where peat or turf has been cut. — Dugdale