Past tense of bourgeon; grew, sprouted, or flourished rapidly.
Simple past tense of 'bourgeon' with the regular '-ed' ending.
You'll see 'bourgeoned' mostly in literature and poetry—when a writer wants to describe something that grew spectacularly, they use this word instead of plain 'grew' to make readers feel the explosive energy!
Complete word intelligence in one call. Free tier — 50 lookups/day.