hob (1), hub

[From the same root as hop and hump.] 1. Build . ( of the form hob): The flat iron shelf at the side of a grate, on which things are placed to keep warm. 2. Mach .: A hardened, threaded spindle by which a comb or chasing-tool may be cut. 3. Vehicles: (1) The nave of a wheel. (2) The runner of a sledge. (C. Andrews : Agric . Engin ., iii. 41.) *hob (2), *hob be, s. [A corrupt. and contrac. of Robin , as Hodge from Roger .] hobby hob-ba-dě-hóy, hob-bě dy-hoy, s. [HOBBLEDEHOY.]