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.

ὑπόκειμαι‘assume, establish (in reality, as model)’

Greek

References: PH Heiberg: I.1:4, 70:21; I.4:4, 76:13
Translated into:
Arabic: الوضع الحقيقي [PH Morelon: I.1:4, 17:3]
Arabic: جُعل [PH Morelon: I.4:4, 21:8]
Modern translations:
English: underlying <reality> [PH Hamm: I.1:4, 45:8]
Synonyms:
προεκτίθημι[PH Heiberg: I.5:1, 76:20]