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.

دائرتا المنقلبين ‘tropics’

Arabic

References: Plan. Sidoli+Berggren: 36, 40, 114, 166, 528, 528
Modern translations:
English: tropics [Plan. Sidoli+Berggren: ?]