IPA: /ˈlæstɪŋli/
KK: /ˈlæstɪŋli/
In a way that continues for a long time or forever.
The changes made to the environment must be addressed lastingly to ensure a better future.
Lastingly → It is formed from "last" (from Old English *lastan*, meaning to continue or endure) and the suffix "-ly" (meaning in a manner of). The word "lastingly" means in a manner that continues or endures over time.
Think of something that 'continues' ('last') 'in a manner' ('-ly') — that's why lastingly means to endure over time.