sultry, sweltering ...1603 obs. rare
from swolter, swalter, variant of swelter (n. a sweltering condition) + -y
FIRST DOCUMENTED USE
1603 - see EXAMPLE below
"...Ham. I shall sir giue you attention:
By my troth me thinkes t'is very colde.
Gent. It is indeede very rawish colde.
Ham. T'is hot me thinkes.
Gent. Very swoltery hote:
The King, sweete Prince, hath layd a wager on your side,
Six Barbary horse, against six french rapiers,
With all their acoutrements too, a the carriages:
In good faith they are curiously wrought..."
From: The Tragicall Historie of Hamlet, Prince of Denmarke
- William Shakespeare