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The Collaborative International Dictionary
Surbed

Surbed \Sur*bed"\, v. t. [imp. & p. p. Surbedded; p. pr. & vb. n. Surbedding.] [Pref. sur- + bed.] To set edgewise, as a stone; that is, to set it in a position different from that which it had in the quarry.

It . . . has something of a grain parallel with the horizon, and therefore should not be surbedded.
--Gilbert White.

Wiktionary
surbed

vb. (context transitive English) To set (a stone) edgewise, in a position different from that which it had in the quarry.