to be disposed or inclined in action, operation, or effect to do something: The particles tend to unite.
2.
to be disposed toward an idea, emotion, way of thinking, etc.: He tends to be overly optimistic. Her religious philosophy tends toward pantheism.
3.
to lead or conduce, as to some result or resulting condition: measures tending to improved working conditions; Governments are tending toward democracy.
4.
to be inclined to or have a tendency toward a particular quality, state, or degree: This wine tends toward the sweet side.
5.
(of a journey, course, road, etc.) to lead or be directed in a particular direction (usually followed by to, toward, etc.): a path tending toward the beach.
"to incline, to move in a certain direction," c.1350, from O.Fr. tendre "stretch, hold forth, offer" (11c.), from L. tendere "to aim, stretch, extend" (see tenet).
tend
"attend to," early 14c., aphetic of M.E. atenden (see attend).