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.

depressio‘depression of a planet’

Latin. – Grammar: noun.

References: Pontano: XXVIc. 14
Translation of:
Greek: ταπείνωμα [Pontano: p. 327]
Synonyms:
deiectio[Pontano: XXVIc. 14]
humilitas[Pontano: XXVIc. 14]