Of, belonging to, or relating to the firmament or heavens; celestial. / (rare) Of, belonging to, or relating to support or strengthening.

plural of northern firmoss

plural of firmoss

A species of firmosses, Huperzia selago.

(obsolete) strength; firmness; stability

Obsolete form of frumenty.

(obsolete) strength; stability

(biology, of frogs) Having the epicoracoid cartilages fused both anteriorly and posteriorly.

(obsolete) Detached from physical substance. / (obsolete) Infirm; unstable.

plural of firmer