めあぐんだそうだ
semeagunda sōda

Godan Verb (mu)
Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of 攻めあぐむ

1. They say he/she/it was unable to make headway.; They say he/she/it was at a loss for how to attack.

Past/Perfective
Hearsay Evidence