PAL

Ptolemaeus Arabus et Latinus

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% (the percent sign) is the placeholder for no, one or more than one character.
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At the beginning and at the end, these placeholders are superfluous.

σύνταξις‘treatise’

Greek. – Grammar: n.

References: Alm. Heiberg: I.2, 8:18
Translated into:
Arabic: الكتاب [Alm. MS Tunis: I.2:23, f. 2v:5]
Arabic: العلم [Alm. MS Leiden: I.2:23, f. 3r:23]
Modern translations:
English: treatise [Alm. Toomer: 37]