In linguistics, grammar is the set of structural rules governing the composition of clauses, phrases, and words in any given natural language. The term refers also to the study of such rules, and this field includes morphology, syntax, and phonology, often complemented by phonetics, semantics, and pragmatics.
American Wire Gauge (AWG) is a U.S. standard set of non-ferrous wire conductor sizes. The gauge means the diameter.
Hag is a name for the slime-eel, a snake-like fish related to the lamprey. These meanings are related to beliefs that the serpent represents earth energy, as seen in ley lines and so-called dragon lines. There would, then, seem to be a correlation between Hag, Serpent, and Earth Mother.