/ ˌkɒnvəˈles; NAmE ˌkɑːn-/ verb
[ v ] to spend time getting your health and strength back after an illness
SYN recuperate :
She is convalescing at home after her operation.
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WORD ORIGIN
late 15th cent.: from Latin convalescere , from con- altogether + valescere grow strong (from valere be well).