Sǽ-burh

According to the Old English Dictionary:

sǽ-burh

a maritime town :-- Hé gewunade in *Capharnaum ðæt is sǽ-burug (-caestrae, Rush.) habitavit in Capharnaum maritima (*note on Capharnaum : In ðær byrig Capharnaum is genemned and maritimam cuoeð, forðon ðyú burg is on sǽ), Mt. Kmbl. Lind. 4, 13. [Icel. sæ-borg a sea-side town.] sæ-burh