What is the singular possessive of ass?

Answer 1

There are two accepted forms for possessive singular nouns that end with an s:

Add an apostrophe (') after the existing s at the end of the word:

• ass'

Add an apostrophe s ('s) after the existing s at the end of the word:

• ass's

. Examples:

"The farmer pulled out the ass' feed and put it in the tray".

"The farmer pulled out the ass's feed and put it in the tray".