Expedient (adjective)

1. Serving to promote one's interests; advantageous or useful.
2. Done or chosen with a view to practical advantage; pragmatic.

Origin:

From latin expedire "to make ready, set free", from ex- "out" + pes, pedis "foot".

Examples:

1. It would be expedient to take the early train to avoid the rush hour.
2. The company's decision to outsource certain tasks proved to be an expedient move.
3. It would be expedient to avoid discussing politics at the dinner table.
4. The general thought that it would be expedient to retreat and regroup.
5. It was expedient to take the opportunity while it was available.