Source of sustenance (9)
I believe the answer is:
nutriment
(Other definitions for nutriment that I've seen before include "Nourishing food" , "It sustains" , "Material providing food" , "diet" , "Sustenance, nourishment" .)
I believe the answer is:
nutriment
(Other definitions for nutriment that I've seen before include "Nourishing food" , "It sustains" , "Material providing food" , "diet" , "Sustenance, nourishment" .)