You searched for: “ab asino lanam
ab asino lanam.
Literally, "wool from an ass [donkey]".

Its more modern meaning is "Trying to get blood from a stone or a turnip" or anyone who tries to achieve the impossible is bound to fail.

This entry is located in the following units: a-, ab-, abs- (page 1) Latin Proverbs, Mottoes, Phrases, and Words: Group A (page 2)