Hwésan

According to the Old English Dictionary:

hwésan

p. hweós To wheeze, make a noise in breathing, to breathe hard :-- Gif hé mid earfoþnysse hwést if he breathes with difficulty, Lchdm. iii. 122, 3. Hé hwést swýðe hefelíce, 126, 9. Hé egeslíce hweós he wheezed terribly, Homl. Th. i. 86, 1. [Icel. hvæsa to hiss.] hwesan