Why are there only 3 MONTHS in a QUARTER YEAR?

2021 Calendar showing Quarters
2021 Calendar showing Quarters
The word Quarter comes from the Latin "quarta", which means "four". So, shouldn't a Quarter-Year contain 4 months instead of 3?

Come on G@G community. Enlighten us!
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+1 y
Several G@Gers have said that fun questions is one of the things they like on G@G, and that's the type of question this is. A few of you got that. To the others, many thanks for clarifying that 12 divided by 4 is 3. 👍😎🤔
Why are there only 3 MONTHS in a QUARTER YEAR?
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