うんと
unto

Adverb

1. a great deal; very much; a lot

Onomatopoeia
もしおまえがひとりで たらうんとおこってやらなきゃならないかもしれない。
moshi omaega hitoride kitara untōkotte yaranakya naranaikamo shirenai.
I might have to be very angry with you if you were to come alone.
Adverb

2. with a great amount of effort

Archaic
Onomatopoeia
わたくし いま学期 がっきほとんど勉強 べんきょうをしなかったので、来 らい学期 がっきはうんと勉強 べんきょうをするつもりです。
watashiwa ima gakki hotondo benkyōo shinakattanodera igakkiwa untobenkyōo suru tsumoridesu
I have hardly studied this term, so I'm going to study hard next term.