Rumi number ninety

It means ninety in the Rumi numeral system.

One sign, 𐹱 means 90; modern decimal notation uses two digits. The system is attested in North Africa by the 10th century, especially around Fez; it reached al-Andalus, Muslim-ruled Iberia, by the 12th century and lasted until the 17th century. Also called Fasi or Fez numerals, it marked manuscript pages, chapters and book sections, accounts, calculations, and astronomical instruments.

Rumi numerals connect historically to Coptic or Greek-Coptic numeral traditions; Coptic is a historic Egyptian language. Siyāq is separate: its signs are stylized Arabic spellings of number names. Nearby entries show whether 90 marks a page sequence, account, calculation, or scale.