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.

سنة مصرية ‘Egyptian year’

Arabic

References: PH Morelon: I.5:2, 21:15
Translation of:
Greek: Αἰγυπτιακὸν ἔτος [PH Heiberg: I.5:2, 76:25]
Modern translations:
French: année égyptienne [PH Morelon: I.5:2, 20:24]
German: ägyptisches Jahr [PH Nix: I.5:2, 77:29]