“Cacography” comes from the Greek “kakos,” meaning “bad,” and the combining form “-graphy,” referring to writing (either literal handwriting or a subject of the writing). While “cacography” can refer to either poor handwriting or spelling (or both), depending on the context, there are separate words to refer to skill in each of those subjects. Good handwriting is more formally called calligraphy, from the Greek “kalligraphos,” meaning “person who writes beautifully.” Someone who gets A’s on spelling tests knows their orthography — “the conventional spelling system of a language” — which comes from the Greek “orthos,” meaning “correct,” and “graphia,” meaning “writing.”