eventhough

As a verb yet is

(dialectal) to melt; found; cast, as metal.

As a noun yet is

(dialectal) a metal pan or boiler; yetling.

As an adverb yet is

(usually with negative) thus far; up to the present; up to some specified time.

As a conjunction yet is

nevertheless; however; but; despite that.

Eventhough is likely misspelled.

Eventhough has no English definition.

As a noun taxonomy

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