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.

قول ‘note, commentary’

Arabic

References: PH Morelon: I.1:1, 15:5
Translation of:
Greek: ὑπόμνημα [PH Heiberg: I.1:1, 70:4]
Modern translations:
French: devéloppement [PH Morelon: I.1:1, 14:8]
German: Lehr [PH Nix: I.1:1, 71:6]