Abstract This article re-evaluated two pre-Old Korean appellations for Paekche kings, yuluoxia ( 於羅瑕 ) and jianjizhi ( 鞬吉支 ) from the Zhoushu ( 周書 ), and their proposed sound correspondences orikoke ( オリコケ ) and konikishi ( コニキシ ) from the Nihon shoki ( 日本書紀 ). As a conclusion, yuluo- ( 於羅 ) corresponded to a Paekchean loan in Western Old Japanese, derived from proto-Japonic *era- > WOJ ira ‘high esteem for man.’ - Xia ( 瑕 ) parallelled to - jia ( 加 ) in official titles from Koguryŏ and Puyŏ. Similarly, jian- ( 鞬 ) aligned with - kan- ( 干 ) for the pre-OK ** kan ~ ɣan ‘king, lord’ in Silla aristocratic titles. - Zhi ( 支 ) meaning ‘sir, lord’ shared variants such as - ji ( 伎 ) ~ - qi ( 岐 ), linked to the pre-OK **ke > kje(j) > ki, and the phonograms jie - ( 皆 ) ∼ - xie ( 諧 ) ∼ - jie - ( 解 ), - ke ( 奚 ) for pre-OK **kej ∼ kəj. - Jizhi ( 吉支 ) was a variant of - kilji ( 吉之 ) ~ - jishi ( 吉士 ) ~ - jishi ( 吉師 ) as pre-OK **ki.si meaning “sir, lord” originated from the appellation for Jizi ( 箕子 ) in Puyŏ-type language.
Yan Xu (Fri,) studied this question.