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.

نقطة الانقلاب/المنقلب الصيفي ‘summer solstice’

Arabic

References: PH Morelon: I.3:6, 19:17; I.3:7, 19:19
Translation of:
Greek: θερινὸν (σημεῖον) [PH Heiberg: I.3:6, 74:22; I.3:7, 74:24]
Modern translations:
French: point de solstice d'été [PH Morelon: I.3:6, 18:23]
German: Sommerwendepunkt [PH Nix: I.3:6, 75:30]