Abbreviation of ad libitum, borrowed from New Latin ad libitum.
Meanings
At pleasure.
At will.
As much as desired, to one's fill, without restriction.
For one thing I had a splendid supper when I got on board—a whack of cold, lean beef and pighells, bread, butter ad lib., tea, and plenty of good bread. 1951, Katherine Mansfield, Letters to John Middleton Murry, 1913-1922:
de nach Belieben (at pleasure) · ru по жела́нию (at will) · de improvisiert (extemporaneously) · ru экспро́мтом (extemporaneously) · de beliebig (at pleasure) · de beliebig (at will) · es ad libitum (at will) · es ad libitum (at pleasure) · fr ad libitum (as much as desired, without restriction) · de nach Herzenslust (at pleasure) · hu tetszés szerint (at pleasure) · fr à discrétion (as much as desired, without restriction) · ru ско́лько уго́дно (as much as desired, without restriction) · pt à vontade (at pleasure) · pt à vontade (at will) · th พูดกลอนสด (extemporaneously) · es ad líbitum (at pleasure) · fr ad libitum (at will) · ru как уго́дно (at pleasure) · es ad líbitum (at will)