noun: A weak or sickly person, especially one who is constantly or overly worried about his or her health.
adjective: Chronically sick or concerned about one’s health.
From Latin valetudo (state of health), from valere (to be strong or well). Ultimately, from the Indo-European root wal- (to be strong), which is also the source of valiant, avail, valor, value, countervail, polyvalent, and wieldy. Earliest documented use: 1703.
“Broadway theatre has long been known as ‘the fabulous invalid’, but could the old valetudinarian finally have caught a fatal cold?”
Charles Spencer; British Theatre Will Thrive in a Downturn; The Telegraph (London, UK); Dec 10, 2008.
Explore “valetudinarian” in the Visual Thesaurus.