stenchy

As a noun taxonomy

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

As an adjective stenchy is

having a stench or foul odour, malodorous.

As a noun odour

is any smell, whether fragrant or offensive; scent; perfume.

As an adjective stenchy is

having a stench or foul odour, malodorous.

As a noun stench

is a strong foul smell, a stink.

As a verb stench

is (obsolete) to cause to emit a disagreeable odour; to cause to stink.

As an adjective stenchy is

having a stench or foul odour, malodorous.