Abbreviation meaning "and others" (2,2)
I believe the answer is:
et al
'abbreviation meaning and others' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for et al that I've seen before include "And the rest (Lat. abbr.)" , "Latin notation - late for others" , "And others (abbrev.)" , "'And others, to the old Romans (2,2)'" , "And the rest, to the old Romans" .)