OVERWATCH
Etymology
Verb
overwatch (third-person singular simple present overwatches, present participle overwatching, simple past and past participle overwatched)
(transitive) To watch over.
(transitive) To watch excessively.
(transitive, obsolete) To overcome with long lack of rest.
Noun
overwatch (uncountable)
(military) The supervision of one unit or vehicle by another while the supervised unit is firing or moving.
Anagrams
• watch over
Source: Wiktionary
O"ver*watch", v. t.
1. To watch too much.
2. To weary or exhaust by watching. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition