surname, peaceful, rather
寗 is a rare character used primarily as a surname. Its standalone meanings of 'peaceful' and 'rather' are obscure and not clearly connected; treat its meaning as uncertain outside of surname usage.
The historical origin of 寗 is uncertain. It visually combines 宓 and 冉, but the exact development and original meaning are unclear.
The top 宓 suggests quietness, and the bottom 冉 looks like a settled object. Picture a peaceful surname written on a calm scroll.
For ネイ, imagine a peaceful neighbor named Nay who always keeps things calm: Nay -> ネイ.