Swelling

According to the Old English Dictionary:

e;

swelling

f. A swelling, used of a sail swelled out by the wind:--Gesión brecan ofer bæðweg brimwudu, snyrgan under swellingum (cf. snel under segle, Andr. Kmbl. 1009; An. 505), Elen. Kmbl. 489; El. 245. swelling