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.

occasus  ‘disappearance’

Latin. – Grammar: n.

References: Alm. Gerard: I.3:34, f. 2rb:48
Translation of:
Arabic: غروب [Alm. MS Leiden: I.3:34, f. 3v:18. – Alm. MS Tunis: I.3:34, f. 3r:6]