Crossword Genius

Treated ill (5)

Ross

I believe the answer is:

dosed

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'treated' is the first definition.
(similar in meaning)

'ill' is the second definition.
Both the answer and definition are adjectives. Maybe you can see a link between them that I don't see?

Can you help me to learn more?

(Other definitions for dosed that I've seen before include "Given shot" , "Administered a portion of medicine to" , "Given medicine" , "Medicated" , "Treated with medicine" .)

I've seen this clue in The Globe and Mail.
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