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.

μέγεθος‘size’

Greek. – Grammar: n.

References: Alm. Heiberg: I.2, 9:22
Translated into:
Arabic: عظم [Alm. MS Leiden: I.2:27, f. 3r:37. – Alm. MS Tunis: I.2:27, f. 2v:15]
Modern translations:
English: size [Alm. Toomer: 38]
Synonyms:
πηλικότης[Alm. Heiberg: I.1, 6:2; I.10, 43:4, 47:1; I.10, 47:4,6,12]