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.

الفلك الخارج المركز‘eccentric circle’

Arabic

References: Alm. MS Leiden: f. 38v; f. 39r
Translation of:
Greek: ἔκκεντρος κύκλος [Alm. Heiberg: III.3, 217:8; III.3, 219:23,24,27]
Synonyms:
فلك خارج المركز[Plan. Hyp.: II.10]