Serviceable (adjective)

1. Capable of being used for the intended purpose.
2. In good working order.

Origin:

From the middle english word "serveisable", from the old french word "servisable", from the latin word "servus" meaning "servant" or "slave".

Examples:

1. The car was still serviceable, despite its age.
2. The tools were serviceable but not very high quality.
3. The tent was serviceable for a night's camping, but not much more.
4. The shoes were serviceable but not very fashionable.
5. The old computer was still serviceable, but it was slow.