lethargize
[ leth-er-jahyz ]
/ ˈlɛθ ərˌdʒaɪz /
verb (used with object), leth·ar·gized, leth·ar·giz·ing.
to make lethargic; stupefy.
Also
especially British,
leth·ar·gise.
Origin of lethargize
First recorded in 1605–15;
letharg(y) +
-ize