What is the X in X-mas?
"starch-like," 1857, coined in German (1839) from Latin amylum (see amyl) + Greek-derived suffix -oid. The noun is attested from 1872.
amyloid am·y·loid (ām'ə-loid')n.
A starchlike substance.
A hard, waxy deposit consisting of protein and polysaccharides resulting from the degeneration of tissue.