Hi tikonen, welcome.
Yes, there are resemblances other than the letters a, o, c, especially with late medieval numerals 4, 7 and abbreviations in Latin manuscripts of the 14th-15th century. This has been discussed many times here, search "cursive" or "macron" and you will find the threads. It is more than the effect of reusing common basic shapes in a made-up alphabet, it also matches the position in the word of y and in.
Yes, there are resemblances other than the letters a, o, c, especially with late medieval numerals 4, 7 and abbreviations in Latin manuscripts of the 14th-15th century. This has been discussed many times here, search "cursive" or "macron" and you will find the threads. It is more than the effect of reusing common basic shapes in a made-up alphabet, it also matches the position in the word of y and in.