Nave

Zell's Condensed Dictionary · 1879 · p. 32

(nav.) [From L. nav is, a ship.] (Arch.) The middle or body of a church, extending from the baluster or rail of the choir to the chief door.- (From A. S. nafa.] (Mach.) That hollow in the centre of a wheel in which the spokes are fixed. [s. 633]