boln

The Riuer, as running along the ſide of the City; in a skinne made like fleſh, naked, and blevv. His mantle of ſea-greene or vvater colour, thinne, and bolne out like a ſayle; […]

and when the great raines or water cometh and ſinketh thorow the gravell, and cometh to the earth, then the earth ſwelleth and bolneth, and waxeth ſoft, and with treading, and eſpecially with carriage

Se howe this toode bolneth:

For it is better to Sleepe lyttle and somewhat wyth watching to soke away humous, then immoderatly to bolne, swell and therewyth throughly to be cloyed.