even if ...,...cannot

not ... at all

strong, sturdy, indestructible; hardy

sturdiness, indestructibility

very, exceedingly, awfully / (before a negative form) not at all, at all, by no means

frame (such as a picture frame) / box; border (of a box) / limit, restriction

湧く, 涌く: water and so on to spring, gush, well up / 湧く, 涌く: to feel emotions form, such as bravery / 沸く: to be excited / 沸く: to boil / 沸く: (figuratively) to boom

倭寇: (historical) Japanese pirates

若生: a surname / 和光: A city in Saitama Prefecture, Japan

分かれる: to split, to fork, to branch off / 別れる: to separate / passive of 沸く / passive of 湧く