pant
gasp
gasp
gulp, pant, puff
A four letter word meaning not kosher is: tref
One word for gasp is exclamation. Another one could be wheeze.
The word pine can have that meaning.
aoh
Pant
gasp, gave, geek, gear, give, gist, gone, gong, gyms, gyre
A four-letter word for cooking fat is "lard".
into
A four letter word meaning the foundation of something is base.