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.

دار دورة ‘complete’

Arabic. – Grammar: v.

References: PH Morelon: I.5:4, 23:3
Translation of:
Greek: συντελέω (περίοδος) [PH Heiberg: I.5:4, 78:3]
Synonyms:
أتَمّ[Alm. MS Tunis: ]
تمام[PH Morelon: I.4:2, 21:4]