We don't have synonyms for gregale yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are regale and gregal.
(n) :
a strong Mediterranean wind blowing from the north-east
"1963: The dog days have ended, the maijstral has ceased to blow. Soon the other wind called gregale will bring the gentle rains to solemnize the sowing of our red wheat. -- Thomas Pynchon, V."
(n) :
a strong Mediterranean wind blowing from the north-east
"1963: The dog days have ended, the maijstral has ceased to blow. Soon the other wind called gregale will bring the gentle rains to solemnize the sowing of our red wheat. -- Thomas Pynchon, V."