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.

point d'équinoxe de printemps ‘spring equinox’

French

References: PH Morelon: I.12:9, 44:20-21; I.13:9, 50:1-2
Translation of:
Arabic: نقطة الاعتدال الربيعي [PH Morelon: I.12:9, 45:16; I.13:9, 51:1]