What is another word for up-sprung?
Pronunciation: [ˌʌpspɹˈʌŋ] (IPA) 
"Up-sprung" is a term that refers to something that has suddenly appeared or emerged. Some common synonyms for "up-sprung" include "arisen," "emerged," "appeared," "sprouted," "bloomed," and "burst forth." Other synonyms for "up-sprung" might include "developed," "formed," "materialized," and "manifested." The word is often used in contexts such as describing a sudden growth of plants or flowers, or the sudden appearance of a new idea or trend. Whatever the context may be, the word "up-sprung" and its synonyms all convey a sense of sudden and surprising emergence or growth.
