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.
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At the beginning and at the end, these placeholders are superfluous.

λευκόν‘white’

Greek. – Grammar: adj used as noun.

References: Alm. Heiberg: I.1, 5:21
Translated into:
Arabic: بياض [Alm. MS Tunis: I.1:10, f. 2r:2]
Arabic: أبيض [Alm. MS Leiden: I.1:10, f. 2v:30]
Latin: album [Alm. Sicily: I.1:10, f. 1v:47]
Latin: album [Alm. George: I.1:10, f. 4r:22]
Modern translations:
English: white [Alm. Toomer: 36]