PAL

Ptolemaeus Arabus et Latinus

_ (the underscore) is the placeholder for exactly one character.
% (the percent sign) is the placeholder for no, one or more than one character.
%% (two percent signs) is the placeholder for no, one or more than one character, but not for blank space (so that a search ends at word boundaries).

At the beginning and at the end, these placeholders are superfluous.

συναμφότεροι ‘sum of two things’

Greek

References: PH Heiberg: I.10:10, 88:16
Translated into:
Arabic: بمجموعتين [PH Heiberg: I.10:10, 37:1]