Unction n. : The act of anointing, smearing, or rubbing with an unguent, oil, or ointment, especially for medical purposes, or as a symbol of consecration; as, mercurial unction.

Unction n. : That which is used for anointing; an unguent; an ointment; hence, anything soothing or lenitive.

Unction n. : Divine or sanctifying grace.

Unction n. : That quality in language, address, or the like, which excites emotion; especially, strong devotion; religious fervor and tenderness; sometimes, a simulated, factitious, or unnatural fervor.

Example:
What is the (F)Unction key to delete computer memory when first booting it up?

Taxonomy
oil, the Anointing, king, myron, consecration, baptism, Christian, priest, yoke, bishop, smeared, Jesus, holy oil, baptismal, the Father, Hospitality, coronation, Chrismation.

Defination from the web:
Unction. ... In some churches, it is normal for all of the faithful to receive Unction during Holy Week. The holy oil used at Unction is not stored in the church like the myron, but consecrated anew for each individual service. ...