An archaic or dialectal variant, possibly a feminine form or alternate spelling of gilenyer.
Possibly a variant of 'gilenyer' with a feminine or diminutive suffix, though the etymology remains highly uncertain. The '-ie' ending could indicate a feminine form or Scottish/Northern English dialect.
Medieval and dialect terms often had masculine and feminine versions that modern English dropped—this might be a ghost of that system, preserved only in dusty manuscripts.
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