An Etymological Dictionary of Astronomy and Astrophysics

A small cyst on the skin, containing watery liquid, as from a burn or other injury.

Etymology (EN): M.E. blister, blester, from O.Fr. blestre, of Germanic origin.

Etymology (PE): Tâval “blister” (variants Torbet-Heydariye-yi toval, Guqari tavol), from suffixed (-al) tâv- tav, taf- “to heat, burn, shine,” variant of tâb-, tâbidan “to shine,” → luminous.