Dúfan

According to the Old English Dictionary:

ic dúfe, ðú dýfst, he dýfþ,

dúfan

pl. dúfaþ; p. ic, he deáf, ðú dufe, pl. dufon; pp. dofen To DIVE, sink; mergi :-- Ic deáf under ýðe I dived under the wave, Exon. 126 b; Th. 487, 18; Rä. 73, 4: 113 b; Th. 434, 23; Rä. 52, 5. Dúfe seó hand æfter ðam stáne óþ ða wriste let the hand dive after the stone up to the wrist, L. Ath. iif thou sinkest, Homl. Th. ii. 392, 35. Mid ðam ðe he deáf when he was sinking, ii. 392, 2: 390, 21. DER. be-dúfan, ge-, onge-, þurh-: dýfan. dufan

Related words: 7; Th. i. 226, 16. Gif ðú dýfst