Term Radical_157 can be used to substitute this long construction.
For this case, term Ashi is defined.
Up to year 2021, the computer support of Japanese characters is underdeveloped: yet, there is no united standard for the default font, that would allow each character to look the same at carious computers, but different from other characters.
While this fault is not fixed, there is sense to use the hexadecimal numbers to specify the characters, or use term Ashi in the case, then any of the characters can be used. Visually, term Ashi seems to be well distinguishable from any other terms used in TORI.
Semantic and phonetic
No indication of semantic not phonetic difference for these two characters is found.
This description is not repeated here.
In addition to feet (foot) and leg(s), character ⾜ may be used as counter for pairs of footwear, and also may have sense of verb: to satisfy, to be sufficient.
On the base of descriptions in the cited dictionaries, the search of relevant images had been performed. Sone of the results are shown below.
- https://en.wikipedia.org/wiki/Radical_157 Radical 157 or radical foot (足部) meaning "foot" is one of the 20 Kangxi radicals (214 radicals in total) composed of 7 strokes. In the Kangxi Dictionary, there are 580 characters (out of 49,030) to be found under this radical. 足 is also the 158th indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China. Radical 157 (U+2F9C) .. 足 (U+8DB3) "foot" ..