I. | ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ adverb
Etymology: over (II) + water, n.
: over or across a body of water
employed when flying overwater in the daytime — Official Guide to the Army Air Forces
II. adjective
: situated or occurring over a body of water
the overwater portion … had been spanned in four hours — Horace Sutton
overwater flights
an overwater bridge