As nouns the difference between stay and here
is that
stay is (nautical) a strong rope supporting a mast, and leading from the head of one mast down to some other, or other part of the vessel or
stay can be a prop; a support while
here is a time.
As a verb stay
is (nautical) to incline forward, aft, or to one side by means of stays or
stay can be to prop; support; sustain; hold up; steady.
As an adjective stay
is steep; ascending.
As an adverb stay
is steeply.