function

function n

OFr.

1. Purpose; design; aim; goal; program; objective; reason for existence.
2. Necessary operation; essential process; performance of a vital organ; faculty of the body, mind, heart, or spirit; [word play on mathematical function] formula; equation; algebraic expression of quantity.
3. Office; calling; role; obligation; [fig.] birth; regeneration; life force; source of power.