IPA: /ˈsɪkˌrʊm/
KK: /ˈsɪkˌrum/
A room where a sick person stays to rest and recover.
The nurse checked on the patient in the sickroom every hour.
Sickroom → It is formed from "sick" (from Old English "sēoc", meaning ill or unwell) and "room" (from Old English "rūm", meaning space or area). A sickroom is a space designated for someone who is ill or unwell.
Think of a 'space' ('room') where someone is 'ill' ('sick') — that's what a sickroom is.