Sacrifice

Sacrifice was the offering of food, objects or lives to a supernatural being.

History
Barbara Wright attempted to stop the Aztecs practising Human sacrifice. (DW: The Aztecs)

On Karn, the Sisterhood of Karn offered the Fourth Doctor as a sacrifice to the Sacred Flame. They intended to burn him at the stake. (DW: The Brain of Morbius)

On Delta III, the Swampies offered the Doctor, Romana and Rohm-Dutt as sacrifices to Kroll. They were tied with vines that would tighten under sunlight. They would constrict, eventually snapping their spines. (DW: The Power of Kroll)

On Tigella, the Deons offered the Doctor as a sacrifice to Ti. They hoped this would return the Dodecahedron to them. They burnt through ropes that suspended a rock above the Doctor. (DW: Meglos)

In 1981, the Hecate Cult attempted to sacrifice Brendan Richards, but were stopped by Sarah Jane Smith and K9. (KAC: A Girl's Best Friend)