venial sin: a pardonable sin regarded as entailing only a partial loss of grace
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
potassium: a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite