An early by-form of corruption, n.: cf. corrump, v.

Corrupting influence or agency.

figurative. Any corroding or corrupting influence; a morally diseased or unsound element; a plague-spot.

A thing that tends to corrupt. Obsolete.

A depraving influence or cause. Obsolete.

An agent or substance which causes putrefaction. Also figurative: a corrupting agent or influence.