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.

العدد ‘arithmetic’

Arabic. – Grammar: n.

References: Alm. MS Tunis: I.1:14, f. 2r:12
Translation of:
Greek: ἀριθμητική [Alm. Heiberg: I.1, 6:21]
Synonyms:
علم العدد[Alm. MS Leiden: I.1:14, f. 3r:1]