चालीसव् — fortieth (Noun)
चालीसवाँ — fortieth (Noun)
fortieth — चालीसव्
Fortieth — Following the thirty-ninth, or preceded by thirty-nine units, things, or parts.
Fortieth — Constituting one of forty equal parts into which anything is divided.
Fortieth — One of forty equal parts into which one whole is divided; the quotient of a unit divided by forty; one next in order after the thirty-ninth.