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.

θέσις ‘position’

Greek. – Grammar: n.

References: PH Heiberg: I.2:3, 72:19
Translated into:
Arabic: وضع [PH Morelon: I.2:3, 17:16]
Modern translations:
English: position [PH Hamm: I.2:3, 46:5]
Synonyms:
τόπος[Alm. Heiberg: I.3, 12:2]