HAG

n. mean and ugly old woman, evil old woman; witch (Offensive Slang)

HAG is a Swiss maker of model trains in HO scale. These are high quality trains made of die-cast metal with reliable mechanisms. This is the primary manufacturer of Swiss model trains, but they are more expensive than most brands of HO trains, presumably due to the manufacturing process.  Marklin and Trix  also make die-cast trains which have also have higher prices.
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For the fish, see Hagfish. For the Swiss model train company, see HAG. For the fruit of the tree [Prunus padus], see Bird Cherry. A hag (or crone) 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 such as Hansel and Gretel. Hags are often seen as malevolent, but may also be one of the chosen forms of shapeshifting deities, such as the Morrígan or Badbh, who are seen as neither wholly beneficent nor malevolent. The term appears in Middle English, and might be short for hægtesse, an Old English term for witch.
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The Book of Haggai is a book of the Tanakh (Hebrew Bible) and of the Old Testament, written by the prophet Haggai. It was written in 520 BC some 18 years after Cyrus had conquered Babylon and issued a decree in 538 BC allowing the captive Jews to return to Judea. He saw the restoration of the temple as necessary for the restoration of the religious practices and a sense of peoplehood after a long exile.
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Noun
1. an ugly evil-looking old woman
(synonym) beldam, beldame, witch, crone
(hypernym) old woman
2. eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies
(synonym) hagfish, slime eels
(hypernym) jawless vertebrate, jawless fish, agnathan
(hyponym) Myxine glutinosa
(member-holonym) Myxinidae, family Myxinidae

n. grove, hedge

(v. t.)
To harass; to weary with vexation.
  

(n.)
The hagdon or shearwater.
  

(n.)
An ugly old woman.
  

(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.
  

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

(n.)
A witch, sorceress, or enchantress; also, a wizard.
  

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

(n.)
A quagmire; mossy ground where peat or turf has been cut.
  

(n.)
A fury; a she-monster.