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.

summer solstice ‘summer solstice’

English

References: Alm. Toomer: 41; 69. – Plan. Sidoli+Berggren: ?
Translation of:
Greek: θερινὴ τροπή [Alm. Heiberg: I.5, 17:16, 18:2]
Greek: θερινὸν τροπικόν [Alm. Heiberg: I.14, 76:24]
Arabic: نقطة المنقلب الصيفي [Plan. Sidoli+Berggren: 310]