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.

ὁρίζων ‘horizon’

Greek. – Grammar: present participle of the verb “ὁρίζω” used as noun.

References: Alm. Heiberg: I.2, 8:24
Translated into:
Arabic: أُفُق [Alm. MS Leiden: I.2:23, f. 3r:25. – Alm. MS Tunis: I.2:23, f. 2v:7]
Modern translations:
English: horizon [Alm. Toomer: 37]