Kippah

A kippah or kipa ( /kɪˈpɑː/ ki-PAH; Hebrew: כִּפָּה‎ or כִּיפָּה; plural: kippot כִּפוֹת or כִּיפּוֹת), also known as a yarmulke (i/ˈjɑrməlkə/ YAR-məl-kə or /ˈjɑːməkə/ YAH-mə-kə from Yiddish: יאַרמולקע), kapele (Yiddish: קאפעלע), is a hemispherical or platter-shaped cap, usually made of cloth, often worn by Orthodox Jewish men to fulfill the customary requirement held by some orthodox halachic authorities that their head be covered at all times, and usually worn by men and, less frequently, women in Conservative and Reform communities at times of prayer.