Denshi Jisho — Online Japanese dictionary

断る ことわる 1: to refuse; to reject; to dismiss; to turn down; to decline;
2: to inform; to give notice; to tell in advance;
3: to ask leave; to excuse oneself (from)
Common word, Godan verb with ru ending, Transitive verb 
断る迄もなく ことわるまでもなく needless to say
Expression 
断る迄も無く ことわるまでもなく needless to say
Expression 
断るまでもなく ことわるまでもなく needless to say
Expression 

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