onlook

Etymology 1

From on- + look. Compare Old English onlēċ (“onlook, consideration, regard”).

noun

1. The act of looking on (something); observation.
   The object of the onlook is taken to be more than physical, more than just sense-experience, therefore it is meta-physical. 1966, Baptist Historical Society, The Baptist quarterly, volume 21, page 103
2. That which is looked at, regarded, or considered.
3. (rare) One's perspective or outlook.
   This onlook is certainly foundational to Christianity. […] Religious belief is the conviction (or hope) that one's onlook conforms to an authoritative onlook, a divine onlook. 2004, Richard Briggs, Words in Action

Etymology 2

From on- + look. Compare Old English onlōcian.

verb

1. (intransitive) To look on or look at; watch; observe; view; regard.
   So they two fought for so long a time that those who onlooked were astonished at the strength and the courage and the endurance of those two champions, […] 2008, Howard Pyle, The Story of Sir Launcelot and His Companions