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.

κυκλίσκος‘small circle’

Greek. – Grammar: n.

References: PH Heiberg: I.9:6, 84:5; I.10:7, 86:27; I.11:5, 92:1
Translated into:
Arabic: دائرة صغيرة [PH Morelon: I.11:5, 39:12]
Arabic: فلك التدوير [PH Morelon: I.9:6, 31:6]
Arabic: فلك صغير [PH Morelon: I.10:7, 35:6]
Modern translations:
English: little circle [PH Hamm: I.9:6, 52:7; I.10:7, 54:5; I.11:5, 56:12]