The following is the results of your search for bolled.
Bolled: (Exodus 9:31) meaning "swollen or podded for seed," was adopted in the
Authorized Version from the version of Coverdale (1535). The Revised
Version has in the margin "was in bloom," which is the more probable
rendering of the Hebrew word. It is the fact that in Egypt when barley
is in ear (about February) flax is blossoming.