sus·te·nance 
/ˈsʌstənəns/ noun
/ˈsʌstənəns/ noun [noncount] formal 1 : something (such as food) that keeps someone or something alive
▪ Tree bark provides deer with sustenance in periods of drought. ▪ The village depends on the sea for sustenance. 2 : something that gives support, help, or strength
▪ She draws spiritual sustenance from daily church attendance. ▪ reading for intellectual sustenance
▪ Tree bark provides deer with sustenance in periods of drought. ▪ The village depends on the sea for sustenance.
▪ She draws spiritual sustenance from daily church attendance. ▪ reading for intellectual sustenance
