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.

ἐναλλὰξ τῶν ἀνομοίων‘opposite’

Greek

References: Alm. Heiberg: II.3, 96:14
Translated into:
Arabic: ??? [Alm. MS Tunis: 21a.10]
Arabic: متعاقب  [Alm. MS Leiden: f. 15v.37]
Modern translations:
English: opposite [corresponding] [Alm. Toomer: 79]
Synonyms:
ἀπεναντίον[Alm. Heiberg: I.10, 41:21]