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.

ἐπιδείκνυμι ‘demonstrate’

Greek. – Grammar: v.

References: PH Heiberg: I.2:5, 74:3-4
Translated into:
Arabic: برهن [PH Morelon: I.2:5, 19:3]
Modern translations:
English: demonstrate [PH Hamm: I.2:5, 46:14]