Verb--to make perpetual, to preserve from extinction or oblivion, continue to exist, to preserve, make available.
Save, maintain, sustain.
1)Courts will not allow the perpetuation of testimony.
2)I perpetuated the species of Azadiracta Indica(Neem) by planting them in the nearby forest and took great care of it.
4)Robert perpetuated butter by keeping it in a refrigerator and prevented it from becoming rancid.
5)My flow of speech continued to perpetuate even after my accident.