Green’s Dictionary of Slang

da-erb n.

bread.

1859, 1860		Hotten Dict. of Modern Sl. etc.
1864, 1867, 1870		Hotten Sl. Dict.
1873		Sl. Dict.
1902		Worcs. Chron. 3 May 3/1: The rhyming slang for bread is ‘Lump o’ Lead’. The back-slang is ‘Da-erb’. I heard a man call out to another yesterday that his Rekab had put his da-erb up to owt yannep flatch.