1. Resembling leather: tough.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• leathel,
• lethergy,
• leathargy,
• heathery,
• lethery,
• weathere,
• leaather,
• leatherly,
• eathere,
• pleathera,
• lethegy,
• lethary,
• leathr,
• learther,
• leathet,
• leeather,
• fethery,
• lieather,
• lathergy,
• lathery

• leeder,
• leder,
• leather,
• lathery,
• Lewter,
• leiter,
• leader,
• lather,
• letter,
• Leider,
• loather,
• lettieri.

The adjective form of the word "leathery" is simply "leathery".