user: Question: how mant different day names in old English were coined from the Latin day name "Dies Iovis"?
Columns: ['Modern English day name', 'Old English day name', 'English day name meaning', 'Glossed from Latin day name', 'Latin day name meaning']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Tuesday', 'Tiwesdæg', '" Tiw \'s day"', 'Dies Martis', '"Day of Mars "']
SQL:

assistant: SELECT COUNT("Old English day name") FROM "Table" WHERE "Glossed from Latin day name" = 'Dies Iovis';