Beware! False Teachers...
1sick \ˈsik\ adjective
[Middle English sek, sik, from Old English sēoc; akin to Old High German sioh sick] before 12th century
1 a (1): affected with disease or ill health: AILING
(2): of, relating to, or intended for use in sickness 〈sick pay〉 〈a sick ward〉