burning hot ...1688 obs.
from flame (vb.) + -atious
FIRST DOCUMENTED USE
1688 - see Example below
"...A Flamation, or Flamatious feeling; as the pain of
burning and scalding: or through hot raging distempers."
From: The Academy of Armory,
Or A Storehouse of Armory and Blazon
By: Randle Holme, 1688
• A New English Dictionary on Historical Principles,
James Murray, 1887-1933