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.

μεσημβρία‘noon’

Greek. – Grammar: n.

References: Alm. Heiberg: II.6, 107:15; II.9, 145:7; I.12, 65:21. – PH Heiberg: I.8:4, 80:23
Translated into:
Arabic: (خطّ) نصف النهار فوق الأرض  [Alm. MS Leiden: f. 24v.38]
Arabic: نصف النهار [Alm. MS Leiden: f. 18r.14. – Alm. MS Tunis: ; 31b.3-4]
Arabic: وقت نصف النهر [PH Morelon: I.8:4, 27:15]
Arabic: انتصاف النهار [Alm. MS Tunis: 23b.21]
Modern translations:
English: noon [Alm. Toomer: 62; 85]
English: noon [PH Hamm: I.8:4, 50:16]
English: noon [Alm. Toomer: 104]