Firm \Firm\, a. [Compar. Firmer; superl. Firmest.]

[OE. ferme, F. ferme, fr.L. firmus; cf. Skr. dharman support, law, order, dh? to hold fast, carry. Cf. Farm, Throne.]

1. Fixed; hence, closely compressed; compact; substantial; hard; solid; -- applied to the matter of bodies; as, firm flesh; firm muscles, firm wood.

2. Not easily excited or disturbed; unchanging in purpose; fixed; steady; constant; stable; unshaken; not easily changed in feelings or will; strong; as, a firm believer; a firm friend; a firm adherent.

Under spread ensigns, moving nigh, in slow But firm battalion. --Milton.

By one man's firm obediency fully tried. --Milton.

3. Solid; -- opposed to fluid; as, firm land.

4. Indicating firmness; as, a firm tread; a firm countenance.

Syn: Compact; dense; hard; solid; stanch; robust; strong; sturdly; fixed; steady; resolute; constant.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Firm \Firm\, n. [It. firma the (firm, sure, or confirming) signature or subscription, or Pg. firma signature, firm, cf. Sp. firma signature; all fr. L. firmus, adj., firm. See Firm, a.]

The name, title, or style, under which a company transacts business; a partnership of two or more persons; a commercial house; as, the firm of Hope & Co.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Firm \Firm\, v. t. [OE. fermen to make firm, F. fermer, fr. L. firmare to make firm. See Firm, a.]

1. To fix; to settle; to confirm; to establish. [Obs.]

And Jove has firmed it with an awful nod. --Dryden.

2. To fix or direct with firmness. [Obs.]

He on his card and compass firms his eye. --Spenser.

Source: Webster's Revised Unabridged Dictionary (1913)