A regional spelling of gable, defined in the OED as the triangular piece of wall from the eaves to the summit, although colloquially the ‘gable end’ seems to refer to the whole wall.
To geld was to castrate a male animal and this was a significant and necessary operation in animal husbandry, especially for institutions such as the great monasteries which had large flocks and herds.
Short for ‘engine’, a term used for a variety of mechanical contrivances but in early coal-mining records especially one that was horse-powered, serving as a hoist or pump.
The term gipsey race is found several times for streams in east Yorkshire, and ‘gipsey’ has been used as a general word there for intermittent springs.
In earlier centuries, the girdle was an important article of clothing, serving ‘to secure or confine’ garments or carry accoutrements such as a purse or weapon (OED).
Gist is an aphetic spelling of ‘agist’, used as a verb, noun, and adjective. The verb means to sell rights of pasturage, principally for cattle and horses, which rights were jealously guarded by landowners.
Used of horses suffering from ‘glanders’, that is a contagious disease characterised by swellings beneath the jaw and the discharge of mucous from the nostrils.
An alternative word for the ‘dial’ which miners used for surveying underground. These valuable instruments were probably in the hands of viewers or agents.
One early meaning of the verb was to make something shine like glass, by rubbing and polishing: it was used of swords and other weapons in 1515 and 1648 (OED).