Webster's Revised Unabridged Dictionary · 1913

Valetudinarian

Valetudinarian , adjective

[Latin valetudinarius, from valetudo state of health, health, ill health, from valere to be strong or well: compare French valétudinaire. See Valiant.]

Of infirm health; seeking to recover health; sickly; weakly; infirm.
My feeble health and valetudinarian stomach. — Coleridge
The virtue which the world wants is a healthful virtue, not a valetudinarian virtue. — Macaulay

Valetudinarian , noun

A person of a weak or sickly constitution; one who is seeking to recover health.
Valetudinarians must live where they can command and scold. — Swift