What is the Latin word for sick?

The usual Latin words for “sick” are aeger, aegrōtus, morbidus; also invalidus, īnfirmus, imbēcillus. The right choice depends on the sense; see the distinctions below.

English → Latin

“sick” in Latin

aegersick, ill; weak, feeble; difficult, reluctant, troublesome aegrōtussick, ill, diseased, suffering:; sick, ill, diseased, suffering:morbidussick, diseased; unwholesome invalidusinfirm, impotent, weak, feeble īnfirmusweak, feeble; unhealthy, infirm, indisposed, sick; inconclusive imbēcillusweak, feeble; cowardly valeōto have strength, influence, power; to avail; to be well, healthy, sound; to be worth, be worthy

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

sick

aeger (of body or mind; opposed to sanus, valens): aegrotus: morbidus (sick of a disease, and thereby unable to act; the former of persons, animals, and things personified; as also of the mind, disordered by passion; e.g., Ter., Andr., 1, 2, 22, and Heaut., 1, 1, 48: morbidus only of animals): affectus valetudine: invalidus: infirmus: imbecillus (unwell; frequently euphoniously for aeger or aegrotus). (The words are found in this connection and order.) invalidus et aeger: aeger atque invalidus: infirmus atque aeger. Dangerously sick, gravi et periculoso morbo aeger: to fall sick, morbo or valetudine affici, tentari, or corripi; morbum nancisci (to be attacked by a disease); in morbum cadere, incidere, or delabi; in adversam valetudinem incidere; implicari morbo; in morbum conjici; morbum or valetudinem contrahere (to contract a disease): to be sick, aegrotare (opposed to valere); aegrotum esse; in morbo esse; morbo laborare, affectum esse; valetudine affectum esse; morbo vexari or conflictari: aegro corpore esse; infirma atque aegra valetudine esse (to have a sickly body); (very sick) graviter or gravi morbo aegrum esse; (dangerously sick) periculose aegrotare; (mortally sick) aegrotare mortifere; mortifero morbo affectum esse; novissima valetudine conflictari; (slightly sick) leviter aegrotare or aegrum esse: to be on a sick-bed, in lecto jacere or esse, or, from the context, simply jacere or cubare; lecto tenere or affixum esse: to be or lie sick of anything, aegrum esse aliqua re (e.g., vulneribus; gravi et periculoso morbo); aegrotare ab or ex re (e.g., ab or ex amore; ex cupiditate gloriae); cubare ex re (e.g., ex duritie alvi); laborare aliqua re, ab or ex aliqua re (to suffer in any part; e.g., ex pedibus, ex renibus): to be Vid: at heart, ab animo aegrum esse; animus aegrotat; miserum esse ex animo (Plaut., Trin., 2, 3, 6): to pretend to be sick, aegrum simulare; valetudinem simulare. Attendant on a sick person, cujus curae custodiaeque (aegrotus) aliquis mandatus est (Plin., Ep., 7, 19); assidens (Plin., Ep., 1, 22, 11).

Quick answer

What is the Latin word for sick?: The usual Latin words for “sick” are aeger, aegrōtus, morbidus; also invalidus, īnfirmus, imbēcillus. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.