Inside the Universes

'sustainment'

[sustenance.n.03] as in: the act of sustaining life by food or providing a means of subsistence

Examples:
they were in want of sustenance
fishing was their main sustainment

Origins

					sustainment (English)
├── -ment (English)
│   └── -amentum (Latin)
└── sustain (English)
    └── sustenir (Old French (842-ca. 1400))
        └── sustineo (Latin)