How to say "to perish, be destroyed" in Arabic

Not a coincidental look-alike — the root ה-ל-ך really is shared (ه↔ה, ل↔ל, ك↔ך), and comparative Semitists connect both Hebrew הלך ('walked, went') and Arabic halaka ('perished, was destroyed') to the same old root as Akkadian alāku, 'to go.' Hebrew kept the plain sense of walking; Arabic let 'departed' darken into a euphemism for death and ruin, the way English can say someone 'passed' or 'is gone.' One root, two ends of the same road.