arc-boutasses

form-of imperfect second-person singular subjunctive

second-person singular past subjunctive of arc-bouter

English Meaning

second-person singular imperfect subjunctive of arc-bouter

Il était indispensable que tu arc-boutasses le vieux pont pour qu'il ne s'effondre pas.

古い橋が崩れないように、あなたがアーチで支えたことが不可欠でした。

It was essential that you buttressed the old bridge with an arch so that it would not collapse.