Consecrate using oil is a religious ritual that involves anointing someone with oil. This ritual is often used to signify the consecration of a person or object, such as a church or a new king. The term 'ANOINT' is derived from the Latin word 'inunctus, ' which means to smear or rub with oil. Anointing with oil is a common practice in many religions, including Christianity, Judaism, and Islam. In Christianity, it is often used to signify the ordination of a priest or bishop. In Judaism, it is used to signify the inauguration of a new king. In Islam, it is used to signify the coronation of a caliph.