Helpless in Malayalam

Malayalam words whose English meaning includes “helpless”:

ഏകന്‍ (ekan) — A single person, chief, an eminent person, a helpless man, some unknown person, loner.
ഏഴ (eazha) — Beggar, poor, helpless man, a destitute person, ignoramus.
നിസ്സഹായ (nissahaaya) — Helpless.