Webster's Revised Unabridged Dictionary · 1913

Belfry

Belfry ({not transcribed}) , noun

[Old English berfray movable tower used in sieges, Old French berfreit, berfroit, French beffroi, from Middle High German bervrit, bercvrit, German bergfriede, from Middle High German bergen to protect (German bergen to conceal) + vride peace, protection, German friede peace; in compounds often taken in the sense of security, or place of security; orig. therefore a place affording security. German friede is akin to English free. See Burg, and Free.]

1.
(Military Antiquities) A movable tower erected by besiegers for purposes of attack and defense.
2.
A bell tower, usually attached to a church or other building, but sometimes separate; a campanile.
3.
A room in a tower in which a bell is or may be hung; or a cupola or turret for the same purpose.
4.
(Nautical) The framing on which a bell is suspended.