This is an entry from, The English Dialect Dictionary 1904, These are dialect words still in use or known to have been in use during the last two hundred years.
Lear/lear/leary/leariness are archaic words that mean “faint and exhausted with hunger”. Also leariness, “hunger, faintness and exhaustion due to hunger.”
I don’t know if this would help or if it is what you’re specifically looking for.
Frankly, you hit the bull’s eye, Logophile, and thanks a lot for your help
Well, if I were to describe a hardworking farmer who is about to pass out of hunger and tiredness, I would say “ He is leary, right?or am I off the track?