Libation

Scene of a ritual sacrifice with libation on Ancient Greek pottery, dating to 430-420 BC.

A libation is a ritual sacrifice of a liquid. Usually, this was done by pouring the liquid over a sacred object.

Libation Media

Buryat shaman performing a libation of milk
Apollo pouring a libation from a phiale onto the omphalos, with his sister Artemis attending; a bucranium hangs above
Roman bronze statuette of a priest, his head ritually covered, extending a patera in a gesture of libation, 2nd-3rd century CE.
Pouring of a libation at a ceremony in Bouaké, Ivory Coast
Burmese Buddhist water libation ceremony in 1900
A katsura tree ikupasuy
Pouring one out
Nepalese ewer for water oblations, 19th century
Bronze Chinese libation cup (jue), late Shang dynasty, ca. 1210 BCE

This short article about religion can be made longer. You can help Wikipedia by adding to it.