uphilt

As a verb uphilt

is to thrust in up to the hilt; as, to uphilt one's sword into an enemy.

As an adverb uphill is

up a slope, towards higher ground.

As an adjective uphill is

located up a slope or on a hill.

As a noun uphill is

an uphill route.

As verbs the difference between uptilt and uphilt

is that uptilt is to tilt upward while uphilt is to thrust in up to the hilt; as, to uphilt one's sword into an enemy.

As a noun uptilt

is a upward tilt.