WHEREABOUT
Etymology
Adverb
whereabout (not comparable)
(archaic) About which; concerning which.
About where.
Source: Wiktionary
Where"a*bout`, Where"a*bouts`, adv.
1. About where; near what or which place; -- used interrogatively and
relatively; as, whereabouts did you meet him
Note: In this sense, whereabouts is the common form.
2. Concerning which; about which. "The object whereabout they are
conversant." Hooker.
Where"a*bout`, Where"a*bouts`, n.
Definition: The place where a person or thing is; as, they did not know his
whereabouts. Shak.
A puzzling notice of thy whereabout. Wordsworth.
Source: Webster’s Unabridged Dictionary 1913 Edition