Hamisi

Hamisi is a masculine given name of Swahili origin. It is derived from Alhamisi, the Swahili word for Thursday, which itself comes from the Arabic الخميس (al-khamīs), meaning "the fifth" (day of the week). The Arabic root khamsa means "five," as Thursday is the fifth day of the week in the Islamic calendar. In many Muslim-majority cultures, names derived from days of the week, such as Hamisi, are given to boys born on that day, serving as a temporal marker and a link to religious tradition.

The name Hamisi is largely used in East Africa, particularly in Tanzania, Kenya, and Uganda, among Swahili-speaking communities. It is a Muslim name and reflects the influence of Arabic on the Swahili language through centuries of trade and religious contact. The variant Khamis is found in Arabic-speaking regions, while Hamisi is the Swahili adaptation. In Gorontalo, an Austronesian language spoken in Sulawesi, Indonesia, Hamisi also means "Thursday," borrowed from Malay, showing the word's spread along maritime trade routes.

Notable bearers include Hamisi Saidi, a Tanzanian Olympic swimmer, and Hamisi Mdemu, a Tanzanian football manager. The name is less common in the West but remains significant in Swahili culture. Onomastic patterns linking names to days of the week are found in many languages, such as Kofi in Ghana (for Friday) and Domingo in Spanish (for Sunday). Hamisi thus belongs to a global layercake of day-naming traditions originating from the lunar calendar.