Recuperate (-t), v. i. [imp. &. p. p. Recuperated (-td); p. pr. & vb. n. Recuperating.]
Etymology: [L.recuperatus,p.p. of recuperare. See Recover to get again.]
To recover health; to regain strength; to convalesce.
1 other Webster entry under this spelling
Recuperate, v. t.
To recover; to regain; as, to recuperate the health or strength.
Shades of meaning
Fernald has no entry of its own for recuperate; he lists it under recover.
He lists it without comment; the entries above explain its neighbors.