incumbency

nouns

the term during which some position is held
is derived from
a duty that is incumbent upon you
is a type of (narrower)
the social force that binds you to the courses of action demanded by that force
"we must instill a sense of duty in our children"; "every right implies a responsibility; every opportunity, an obligation; every possession, a duty"- John D.Rockefeller Jr
the office of an incumbent
is derived from
is a type of (narrower)
a job in an organization
"he occupied a post in the treasury"