sarcase

As an adverb parcase

is (obsolete) perchance; by chance.

As a verb sarcase is

(nonstandard) to use sarcasm.

As verbs the difference between sarcase and sarcased

is that sarcase is (nonstandard) to use sarcasm while sarcased is (sarcase).

As a noun carcase

is the body of a slaughtered animal after the removal of the offal etc.

As a verb sarcase is

(nonstandard) to use sarcasm.

As a verb sarcase

is to use sarcasm.

As a noun sadcase is

a pathetic, unfashionable or socially inept person; a nerd; a saddo.

As a noun sarcasm

is (uncountable) a sharp form of humor, intended to hurt, that is marked by mocking with irony, sometimes conveyed in speech with vocal over-emphasis insincerely saying something which is the opposite of one's intended meaning, often to emphasize how unbelievable or unlikely it sounds if taken literally, thereby illustrating the obvious nature of one's intended meaning.

As a verb sarcase is

(nonstandard) to use sarcasm.