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.

جمع‘fit together’

Arabic

References: PH Morelon: I.1:3, 15:13; I.2:2, 17:13
Translation of:
Greek: συνάπτω [PH Heiberg: I.1:3, 70:17-18; I.2:2, 72:14]
Modern translations:
Arabic: verbinden [PH Nix: I.1:3, 71:24]
Arabic: raccorder [PH Morelon: I.1:3, 14:22]
French: regrouper [PH Morelon: I.2:2, 16:22]
German: vereinigen [PH Nix: I.2:2, 73:20-21]
Synonyms:
raccorder[PH Morelon: I.1:3, 14:22]
verbinden[PH Nix: I.1:3, 71:24]