The lowercase ‘i’ is meant to emphasize individual submission.
Numbers and dates in lowercase Roman numerals often end in a “j,” signifying “i.”
Chipping Walden, of the Saxon word ᵹipping (or ghipping) uses the insular 'g' (ᵹ), variant of (lowercase) yogh (ȝ).
He used combinations of uppercase and lowercase letters in two sizes in the inscriptions on the clock dial and in his writings.
Thus the lowercase f and y and the uppercase Q are shorn of their due proportions.