Shirabe

達てたって

Adverb Noun
English jmdict
1
adverb (fukushi)nouns which may take the genitive case particle 'no' word usually written using kana alone strongly hoping or requesting (of something that is difficult to be brought to fruition)
彼は総理のたっての要請を固辞した。
He firmly refused the Premier's earnest request.
Other forms 強って 【たって】 (ateji (phonetic) reading)