Simple past tense and past participle of suffice.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "sufficed" in a sentence
"The peculiar knowledge of the pilot and captain sufficed for many thousands of people who knew no more of the sea and navigation than I knew."
"The reason ascribed for the glaring improbability that the Greeks should have left their camp and fleet unfortified during nine years, in the midst of a hostile country, is a purely poetical one: ‘So long as Achilles fought, the terror of his name sufficed to keep every foe at a distance.’"
"According to the existing laws he was absolute ruler over all living beings of the metal world, his word sufficed for the immediate enforcement of the most severe punishment."