lap robe, embroidery pattern
黻 centers on a specific decorative pattern used on ceremonial robes, particularly a lap robe with an embroidery design. The two given meanings are closely linked: the robe itself and the distinctive embroidery pattern that adorns it.
黻 combines 黹 (embroidery, needlework) with 犮, which likely contributes a phonetic element. The character is associated with ceremonial embroidered patterns on robes, but the exact historical development of the right component is uncertain.
The left side 黹 suggests needlework and embroidery. Picture an elaborate lap robe covered with a distinctive stitched pattern, represented by the right side 犮 as a stylized design.
For フツ, imagine a ceremonial robe so richly embroidered that it looks like it's covered in foots (an invented word pronounced like フツ) of intricate thread. The foots of thread make the robe's pattern stand out.