This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
郒 is a rare character whose historical development is uncertain. It visually combines 良 and 邑, but the exact origin is unclear.
Since the meaning is unclear, focus on the shape: 良 (good) next to 邑 (village enclosure). Picture a good village, but remember this kanji's meaning is uncertain.
For ロウ, imagine a low wall around the village enclosure 邑: low -> ロウ, and the good 良 village sits inside.