As a noun etymology

is (uncountable) the study of the historical development of languages, particularly as manifested in individual words.

As an adjective derivative is

.

As adjectives the difference between luciferic and luciferian

is that luciferic is of or relating to lucifer while luciferian is of or relating to lucifer; satanic; devilish.

As a noun luciferian is

an adherent of luciferianism.

As nouns the difference between etymology and definition

is that etymology is (uncountable) the study of the historical development of languages, particularly as manifested in individual words while definition is definition.

As a noun vivisection

is the action of cutting, surgery or other invasive treatment of a living organism for the purposes of physiological]] or [[pathology|pathological scientific investigation.

As a verb intersect is

to cut into or between; to cut or cross mutually; to divide into parts.

As adjectives the difference between considerable and extended

is that considerable is considerable while extended is longer in length or extension; elongated.

As a verb extended is

(extend).

As nouns the difference between cheese and salami

is that cheese is (uncountable) a dairy product made from curdled or cultured milk or cheese can be (slang) wealth, fame, excellence, importance while salami is salami.

As a verb cheese

is to prepare curds for making cheese or cheese can be (slang) to stop; to refrain from or cheese can be (gaming|slang) to use an unsporting tactic; to repeatedly use an attack which is overpowered or difficult to counter.

As an interjection cheese

is (photography).

As adjectives the difference between confident and continental

is that confident is very sure of something; positive while continental is of or relating to a continent or continents.

As nouns the difference between confident and continental

is that confident is while continental is someone from "the continent".

As a verb anoint

is (label) to smear or rub over with oil or an unctuous substance; also, to spread over, as oil.

As a noun bless is

injury, wound.

As nouns the difference between injury and blessing

is that injury is damage to the body of a human or animal while blessing is some kind of divine or supernatural aid, or reward.

As a verb injury

is (obsolete) to wrong, to injure.

As an adjective approving

is expressing approbation; commending; as, an approving smile.

As a verb approving

is .

As a noun approvement is

(obsolete|old english law) improvement of common lands by converting them for advantage of the landlord.