I was wondering what the original names of the months in Latin? The earliest one that I can find is from TimeAndDate:Roman Calendar:
Months in the Republican Calendar Month Names Number of Days Ianuarius 29 Februarius 28 Martius 31 Aprilis 29 Maius 31 Iunius 29 Quintilis 31 Sextilis 29 September 29 October 31 November 29 December 29
The link doesn't provide the names in the ancient Roman calendar, which had only 10 months.
There are inconsistencies in the names of months.
The names for July and August were named after ordinal number + -ilis suffix,
The name for April was named after something not exactly an ordinal number + -ilis.
The names for September, October, November and December were named exactly the same as they were in Modern English. Their etymology also show that their roots were cardinal numbers not ordinal numbers, besides that they have suffixes different from -ilis.
The names for March, May and June were named after the names of gods and goddesses.
In the ancient Roman Calendar, were the names of the 10 months named all after ordinal numbers, similarly to the names for July and August, with a suffix -ilis? What were their names then?
How were the names of the months changed afterwards?
Note: Due to censorship, I cannot access much of the internet or Wikipedia.