じゅー【十】 : juu | define meaning

Cognate with standard Japanese じゅう【十】 juu "ten". Ultimately from Chinese 【十】 "ten" (cf. Mandarin shí; Cantonese sap6; Eastern Min sĕk; Hokkien cha̍p, si̍p, se̍ and chia̍p; Sino-Korean 십 sip; Sino-Vietnamese thập), reconstructed for Middle Chinese as *dzyip.

Historical Ryukyuan attestations

• Vocabulary of the language spoken at the Great Loo-Choo Island, in the Japan Sea (1818), by Herbert John Clifford, records "Ten. Joo (Loo-Choo); Too (Japan)", "[Names of the hours] Ten. Joo twit'chee",  "Eighteen. Kwat'chee joo, or fat'chee joo", "Twenty, eight. Hácoo fat'cheejoo", "One year consists of twelve months. It'chee ning, joo nee gwaútsee", "Twelve hours make one day. Joo nee twit'chee, it'chee nit'chee".