What is languid; drooping.[Obs.] Who, piteous of her woes, reared her lank head. Milton. Lank hair, long, thin hair. Macaulay called?

lank — Languid; drooping.[Obs.] Who, piteous of her woes, reared her lank head. Milton. Lank hair, long, thin hair. Macaulay. (Webster's 1913.)

Sources