Since the word “nail” has no direct relation to the word “foot.” They simply have a similar sound, which is a coincidence, notes philologist and Russian language and literature teacher Tamara VORONINA.
The term “nail” has Germanic origins, while “foot” comes from Slavic languages, and these names for body parts have no connection to each other.
Based on this, it is impossible to find any pattern in the fact that there are nails on the feet while there should be rukti on the hands.
This is almost the same as asking the question: “Why don’t we wear nogovichki on our feet if there are rukavichki on our hands?” — humorously notes the philologist.