Sustenance
来自Big Physics
Middle English: from Old French soustenance, from the verb soustenir (see sustain).
wiktionary
From Middle English, borrowed from Old French, from sustenir (14c) with the suffix -ance, from Vulgar Latin *sustenire, from Latin sustinere. Cf. also Late Latin sustinentia.
etymonline
sustenance (n.)
c. 1300, "means of living, subsistence, livelihood," from Old French sostenance "support, aid" (Modern French soutenance), from Late Latin sustinentia "endurance," from present participle stem of Latin sustinere (see sustain). Meaning "action of sustaining life by food" is from late 14c. Sense of "nourishment" is recorded from late 15c. Related: Sustenant.
