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.

sich aufwickeln ‘counter-acting, unwinding (motion)’

German

References: PH Nix: II.5, 114; II.11, 124-125
Translation of:
Arabic: التفاف [Plan. Hyp.: II.5; II.11]