Schemer comes from scheme + -er; scheme derives from Latin schema ('figure, form'), from Ancient Greek skhēma, from ekhein ('to have, hold'). The historical chain includes Latin schema and Ancient Greek skhēma. Older glosses in the chain include "figure, form" and "to have, hold", which help explain the semantic range of the modern word. Morphologically, schemer is best read as compound, suffixal formation, and borrowing, yielding an English noun shaped by both form history and later usage. In current English it functions as a noun, with the sense "a person who devises cunning or underhanded plans". related forms include scheme, scheming, and schematic. The result is an English noun whose etymology preserves the older forms while supporting the word's specialized modern meaning.