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.

sans s'en séparer ‘in a fixed position’

French

References: PH Morelon: I.9:2, 28:11; I.10:2, 32:6; I.13:2, 46:12
Translation of:
Arabic: غير زائل عنه [PH Morelon: I.9:2, 29:8; I.10:2, 33:5; I.13:2, 47:10]
Synonyms:
fixe sur cet orbe sans s'en séparer[PH Morelon: I.13:7, 48:20-21]
fixé dans cette orbe sans s'en séparer[PH Morelon: I.12:7, 44:10-11]
ne se déplaçant pas (par rapport à lui)[PH Morelon: I.3:3, 18:13-14]
qui ne se sépare pas de cet orbe[PH Morelon: I.11:7, 38:29]