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.

τμῆμα ‘part’

Greek. – Grammar: n.

References: Alm. Heiberg: II.7, 125:12; I.10, 34; I.14, 77:10; I.14, 78
Translated into:
Arabic: قطعة [Alm. MS Leiden: f. 21r.20. – Alm. MS Tunis: 28a.2]
Arabic: جزء [Alm. MS Tunis: ]
Arabic: قسم [Alm. MS Tunis: ]
Arabic: جزاء [Alm. MS Tunis: ]
Modern translations:
English: segment [Alm. Toomer: 94]
English: part [Alm. Toomer: 69; 70]
English: part [Alm. Toomer: 49]