Scrutinize, v. t. [imp. & p. p. Scrutinized; p. pr. & vb. n. Scrutinizing.] — Webster enters it under “scrutinize”
Etymology: [From Scrutiny.]
To examine closely; to inspect or observe with critical attention; to regard narrowly; as, to scrutinize the measures of administration; to scrutinize the conduct or motives of individuals. Whose votes they were obliged to scrutinize. Ayliffe. Thscrutinized his face the closest. G. W. Cable.
1 other Webster entry under this spelling
Scrutinize, v. i.
To make scrutiny.
Shades of meaning
Fernald has no entry of its own for scrutinizing; he lists it under inquisitive.
He lists it without comment; the entries above explain its neighbors.