はなは
hanahada

Adverb

1. very; greatly; extremely; exceedingly; highly; quite

かれはやたらに故事 こじ来歴 らいれき くわしいけれど、それが人生 じんせい やく っているのかはなはだ疑問 ぎもんだね。
karewa yatarani kojirairekini kuwashiikeredo sorega jinsēno yakunitatte iru noka hanahada gimondane.
He has a great storehouse of knowledge about historical details but I seriously doubt that's of any use in life.