Wiktionary
sailest
vb. (context archaic English) (en-archaic second-person singular of: sail)
Usage examples of "sailest".
Sir, said the philosopher, the dragon that thou dreamedst of betokeneth thine own person that sailest here, and the colours of his wings be thy realms that thou hast won, and his tail which is all to-tattered signifieth the noble knights of the Round Table.