Meaning of もがな in Japanese

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Definition of もがな

もがな(mogana)

(prt) particle used to indicate the speaker's hope, desire, wish, etc. (e.g. "it would be nice if ...", "I wish there were ...", etc.)

あらずもがな(arazumogana) 【有らずもがな】

いわずもがな(iwazumogana) 【言わずもがな】

(exp) (it) goes without saying; needn't be said
そんなことは言わずもがなだ。
That goes without saying.
should rather be left unsaid

やらずもがな(yarazumogana) 【遣らずもがな】

なくもがな(nakumogana) 【無くもがな】

(exp, adj-no) can be dispensed with; be better without; useless →Related words: なくてもよい

言わずもがないわずもがなだ。

You know what it is.

そんなことは言わずもがないわずもがなだ。

That goes without saying.