Webster's Revised Unabridged Dictionary · 1913

Sickness

Sickness , noun

[Anglo-Saxon seócness.]

1.
The quality or state of being sick or diseased; illness; disease or malady.
I do lament the sickness of the king. — Shakespeare
Trust not too much your now resistless charms; Those, age or sickness soon or late disarms. — Pope
2.
Nausea; qualmishness; as, sickness of stomach.