semiretirement

sem·i·re·tired

S0257800 (sĕm′ē-rĭ-tīrd′, sĕm′ī-)adj. Working only on a part-time basis, as for reasons of ill health or advanced age.
sem′i·re·tire′ment (-tīr′mənt) n.

semiretirement

(ˌsɛmɪrɪˈtaɪəmənt) n (Industrial Relations & HR Terms) the condition of being semiretired; partial retirement