cliffy

As adjectives the difference between cliffy and steep

is that cliffy is abounding in cliffs while steep is of a near-vertical gradient; of a slope, surface, curve, etc that proceeds upward at an angle near vertical.

As a verb steep is

(ambitransitive) to soak an item (or to be soaked) in liquid in order to gradually add or remove components to or from the item.

As a noun steep is

a liquid used in a steeping process.

As a noun cliffs

is .

As an adjective cliffy is

abounding in cliffs.

As adjectives the difference between cliffy and clifty

is that cliffy is abounding in cliffs while clifty is characterised by cliffs; cliffy, craggy.