"minute search, scrutiny, close examination," 1772, noun of action from scrutinize. Earlier was scrutation (1590s), from Latin noun of action scrutationem (nominative scrutatio).
Entries linking to scrutinization
scrutinize v.
"observe or investigate closely," 1670s, from scrutiny + -ize. Related: Scrutinized; scrutinizing. The earlier verb was scrutine (1590s), from French scrutine, from Late Latin scrutinium.