From Wiktionary, the free dictionary
From Arabic ثُلُث (ṯuluṯ).
Thuluth (uncountable)
- (art, chiefly calligraphy) An Arabic script style.
An Arabic style of calligraphy
Thuluth f (genitive Thuluth, no plural)
- (art, calligraphy) thuluth
Declension of Thuluth [sg-only, feminine]