Caviar reaches Turkish havyar through the obsolete Italian plural caviari. English earlier used spellings including cavery and caviarie.
Cavery and caviarie are alternative earlier spellings, not consecutive steps. Caviare is also a modern English spelling variant.
Sources
- Merriam-Webster: caviar
Word History supplies the Turkish and Italian forms and earlier English variants; the headword lists modern caviare.
- Online Etymology Dictionary · caviar
Meanings of the older forms on the word path.
- Türk Dil Kurumu Sözlükleri · gts
Meanings of the older forms on the word path.
- Collins Dictionaries · caviar
Meanings of the older forms on the word path.