adv. [See ANY 9.] Indefinite compound of when: At any time, ever. Rare in literature, but common in southern dialects.
1831. Carlyle, Sart. Res. (1858), 159. And, simply by wishing that you were Anywhen, straightway to be Then! Ibid. (1845), Cromwell, Introd. There has been none braver anywhere or anywhen.
1878. Bosw. Smith, Carthage, 333. Now, if anywhen, we might have expected that [etc.].