dial. [f. prec. sb.] trans. To furnish with a staithe; to embank.
1839. Stonehouse, Axholme, 20. Considerable attempts must have been made, even at this early period to staith and embank the Trent.
1876. Whitby Gloss., s.v. Steeath, It was well steeath’d; i.e. strengthened by masonry.
