nonpareil (adj.)

mid-15c., non-parail, "having no equal," from Old French nonpareil "not equal, unequaled, peerless," from non- "not" (see non-) + pareil "equal" (from Latin par "equal;" see par (n.)). The noun meaning "an unequaled person or thing" is from 1590s; first applied to a kind of candy 1690s. As the name of a printing type (6 point size) it is attested from 1640s.