Noun
kippa (plural kippas or kippot)
Alternative spelling of kippah
The word has various possible parallels, such as Icelandic kippa which means "to pull, snatch" and the Germanic word kippen which means "to tilt, to incline". Source: Internet
In most synagogues, it is considered a sign of respect for male attendees to wear a head covering, either a dress hat or a kippa (skull cap, plural kipot also known by the Yiddish term yarmulke). Source: Internet