Arabic ṣifr became Medieval Latin zephirum, then Italian zero.
The ordering ends with Italian zero. English may have borrowed from Italian or French; that uncertain final choice is not scored.
Sources
- Merriam-Webster: zero
Noun Word History gives Arabic, Medieval Latin and Italian, and qualifies the English donor.
- Merriam-Webster: cipher
Noun Word History glosses the shared Arabic form as empty or zero.
- Online Etymology Dictionary · zero
Meanings of the older forms on the word path.