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.

παράδειγμα ‘example’

Greek. – Grammar: n.

References: PH Heiberg: I.2:5, 74:1
Translated into:
Arabic: مثال [PH Morelon: I.2:5, 19:2]
Modern translations:
English: example [PH Hamm: I.2:5, 46:12]
Synonyms:
ὑπόδειγμα[Alm. Heiberg: II.2, 89:19]