convalesced


con·va·lesce

C0612200 (kŏn′və-lĕs′)intr.v. con·va·lesced, con·va·lesc·ing, con·va·lesc·es To return to health and strength after illness; recuperate.
[Late Middle English convalesshe, from Latin convalēscere : com-, intensive pref.; see com- + valēscere, to grow strong, inchoative of valēre, to be strong; see wal- in Indo-European roots.]