I still had a family that looked to me for their sustenance.
sustenance programs for the poor are being raided to pay for public union jobs.
During particularly harsh beginnings upon landing in the New World, desperate colonists resorted to human flesh for sustenance.
c.1300, "means of living, subsistence, livelihood," from Old French sustenance (French soutenance), from Late Latin sustinentia "endurance," from Latin sustinens, present participle of sustinere (see sustain). Meaning "action of sustaining life by food" is from late 14c. Sense of "nourishment" is recorded from late 15c.