na·val 
(nāvəl)
(nāvəl)adj.
1.
a. Of or relating to a navy.
b. Having a navy: a great naval power.
2. Obsolete Of or relating to ships or shipping.
[Middle English, from Old French, from Latin nāvālis, from nāvis, ship; see nāu- in the Appendix of Indo-European roots.]