obs. variant of UNBEATEN ppl. a.

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1533.  Bellenden, Livy, II. v. (S.T.S.), I. 145. Nocht was left þareof vnbet doun bot ane small parte.

2

1635.  Brathwait, Arc. Princ., Ded. You shall here meet with an Author walking in an unbeat path.

3