inspector-general (Edo period); upper superintendent officer
Historical government title from the Edo period; refers to a high-ranking inspector or superintendent officer.
The Ōmetsuke was a position in the Edo shogunate responsible for inspecting daimyō and hatamoto.
Compound of 大 (ō, 'great') + 目付 (metsuke, 'inspector'). The term 目付 itself referred to inspectors or censors in the Edo shogunate; the prefix 大 indicates a higher rank.