An archaic word for abundance or to describe a rich harvest, it also refers to physical energy, power or strength, or a plentiful supply or yield.
‘Oh, the riot, the clamour, the crowding chorus, of all silent things that spoke by scent and colour and budding thrust and foison, that moonlit night of June.’
Source: Kenneth Grahame, Dream Days, illus. by Maxfield Parrish (Edin.: Paul Harris Publishing, 1983), p. 224