I was looking for Lehn with no success but then I found this I believe extended version of the shortform. It makes sense because "Lehensherr" or liege was the lord getting land and the ones living there lent in exchange for protecting the kingdom and waging war for the king. Also in the Alemannic Swiss German "öppis uslehne" means "lend or borrow something" in both ways. The other way in German means "lehnen" to lean against something. As for surnames like this one from a time where a job or occupation was a common way to for a surname. I don't think there was a job to lean against something all the time which brought you the food on the table. Or what do you think?
It makes sense because "Lehensherr" or liege was the lord getting land and the ones living there lent in exchange for protecting the kingdom and waging war for the king. Also in the Alemannic Swiss German "öppis uslehne" means "lend or borrow something" in both ways. The other way in German means "lehnen" to lean against something. As for surnames like this one from a time where a job or occupation was a common way to for a surname. I don't think there was a job to lean against something all the time which brought you the food on the table. Or what do you think?