Hesychius delta2553 has the same headword (a nominative singular) but glosses it with the phrase kako\n ei)=dos e)/xwn, "having a bad shape". Latte ad loc. regards that entry as generated by Herodotus 6.61.3 (accusative duseide/a in the story of King Ariston of Sparta's third wife).
Headword and gloss are often used together by Byzantine writers, especially John Chrysostom (on several occasions), Photius, Simplicius and others.