Chantant :: Chantant (a.) Composed in a melodious and singing style.
Merchantable :: Merchantable (a.) Fit for market; such as is usually sold in market, or such as will bring the ordinary price; as, merchantable wheat; sometimes, a technical designation for a particular kind or class..
Unmerchantable :: Unmerchantable (a.) Not merchantable; not fit for market; being of a kind, quality, or quantity that is unsalable..