Webster's Revised Unabridged Dictionary · 1913

Sick

Sick , adjective

[Old English sek, sik, ill, Anglo-Saxon seóc; akin to Old Saxon siok, seoc, OFries. siak, Dutch ziek, German siech, Old High German sioh, Icelandic sj{not transcribed}kr, Swedish sjuk, Danish syg, Gothic siuks ill, siukan to be ill.]

1.
Affected with disease of any kind; ill; indisposed; not in health. See the Synonym under Illness.
Simon's wife's mother lay sick of a fever. — Mark i. 30
Behold them that are sick with famine. — Jer. xiv. 18
2.
Affected with, or attended by, nausea; inclined to vomit; as, sick at the stomach; a sick headache.
3.
Having a strong dislike; disgusted; surfeited; -- with of; as, to be sick of flattery.
He was not so sick of his master as of his work. — L'Estrange
4.
Corrupted; imperfect; impaired; weakened.
So great is his antipathy against episcopacy, that, if a seraphim himself should be a bishop, he would either find or make some sick feathers in his wings. — Fuller

[These terms, sick bed, sick berth, etc., are also written both hyphened and solid.]

Collocations (6)
Sick bay (Nautical) , an apartment in a vessel, used as the ship's hospital.
Sick bed , the bed upon which a person lies sick.
Sick berth , an apartment for the sick in a ship of war.
Sick headache (Medicine) , a variety of headache attended with disorder of the stomach and nausea.
Sick list , a list containing the names of the sick.
Sick room , a room in which a person lies sick, or to which he is confined by sickness.

Sick , noun

Sickness. [Obsolete] — Chaucer

Sick , intransitive verb

To fall sick; to sicken. [Obsolete] — Shakespeare