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.

الدائرة الموازية‘parallel’

Arabic

References: Alm. MS Tunis: 23a.11,20
Translation of:
Greek: παράλληλος [Alm. Heiberg: II.6, 105:1,14]
Synonyms:
الخطّ الموازي[Alm. MS Leiden: f. 17r]
متوازي[Alm. MS Leiden: I.13:185, f. 11r:17. – Alm. MS Tunis: I.13:185, f. 11v:24]
مواز[Alm. MS Tunis: I.3:30, f. 2v:19]
موازي[Alm. MS Leiden: I.3:30, f. 3v:1]