misfortune, disaster, calamity
殃 centers on harmful, destructive events: misfortune, disaster, or calamity that befalls someone.
殃 combines 歹 (death, bad omen) with 央, which likely contributes the sound and may suggest a central or striking misfortune.
The left side 歹 suggests death or decay, and the right side 央 looks like a person burdened under a heavy load. Picture a central, crushing disaster bringing misfortune.
For オウ, imagine a calamity so severe that everyone cries out 'Ow!' in pain: Ow -> オウ, the sound of sudden disaster.
trouble brought on by sins of forebears
collateral damage; getting embroiled in someone else's dispute; having a fire spread to one's own house
iniquities of fathers are visited upon their sons