Thread: -ka getsu

I wonder, what exactly is the character ヶ in expressions like 一ヶ月?

Is it a kanji? Surely it's not katakana ケ. Is it only used here?

It’s the same as 箇. And it is said have changed its form from 个. It’s written, e.g. like 三箇月 or 三個月、参箇月、参個月. Here 参 is the old form of 三.
And it’s used not only as to counting months, there are some other cases you’ll see it, it’s just a unit.

Originally Posted by MOG

It’s the same as 箇. And it is said have changed its form from 个. It’s written, e.g. like 三箇月 or 三個月、参箇月、参個月. Here 参 is the old form of 三.
And it’s used not only as to counting months, there are some other cases you’ll see it, it’s just a unit.

Thanks!
Is 個 in 三個月 pronounced as か, too?

Yeah, but it's not a normal usage of the kanji.
And ヶ is pronounced こ when it's used for instance in りんご一ヶ