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Webster 1913 Edition

Noun.

[Cf. Gael.

brog

, E.

brog

, n.]

(Carp.)

A peculiar brad-shaped spike, to be driven alongside the end of an abutting timber to prevent its slipping.

brob ‎(plural brobs)

A wedge-shaped spike used to secure the end of a timber where it abuts another. Much used in earlier times in the construction of tunnelled box-timber headings.

brob ‎(third-person singular simple present brobs, present participle brobbing, simple past and past participle brobbed)