upstay

As verbs the difference between upstay and upsway

is that upstay is to sustain, support while upsway is to sway or swing up; brandish.

As verbs the difference between upstay and unstay

is that upstay is to sustain, support while unstay is to undo the establishment of; disestablish; dissolve; divest.

As a noun taxonomy

is the science or the technique used to make a classification.

As a verb upstay is

to sustain, support.

As verbs the difference between support and upstay

is that support is (senseid)to keep from falling while upstay is to sustain, support.

As a noun support

is something which supports often used attributively, as a complement or supplement to.

As verbs the difference between sustain and upstay

is that sustain is to maintain, or keep in existence while upstay is to sustain, support.

As a noun sustain

is (music) a mechanism which can be used to hold a note, as the right pedal on a piano.