sufficiency
/səˈfɪʃənsɪ/noun
(pl. -ies)［mass noun］
1- the condition or quality of being adequate or sufficient充足; 足量。
1.1
- in sing. an adequate amount of something, especially of something essential充足：
a sufficiency of good food.
充足的优质食品。
1.2
- archaic self-sufficiency or independence of character, especially of an arrogant or imperious sort〈古〉自负, 自满。
词源
late 15th cent. (denoting sufficient means or wealth)： from late Latin sufficientia, from the verb sufficere （see SUFFICE）.