Is it ensure, insure, or assure?
Old English worðscip, wurðscip (Anglian), weorðscipe (West Saxon) "condition of being worthy, honor, renown," from weorð "worthy" (see worth) + -scipe (see -ship). Sense of "reverence paid to a supernatural or divine being" is first recorded c.1300. The original sense is preserved in the title worshipful (c.1300).
c.1200, from worship (n.). Related: Worshipped; worshipping.
homage rendered to God which it is sinful (idolatry) to render to any created being (Ex. 34:14; Isa. 2:8). Such worship was refused by Peter (Acts 10:25,26) and by an angel (Rev. 22:8,9).
broadly defined, the response to the appearance of that which is accepted as the holy-that is, to a sacred, transcendent power or being. Characteristic modes of response to the holy include cultic acts of all kinds: ritual drama, prayers of many sorts, dancing, ecstatic speech, veneration of various persons and objects, sermons, silent meditation, and sacred music and song. Also included in worship are acts of private response: spoken or unspoken prayers, silence, the assumption of particular postures, ritual acts and gestures, and individual acts of veneration of persons or objects.