Present participle of coalesce; the ongoing process of coming together and merging.
From Latin 'coalescere' with the present participle ending '-ing' added in English.
Right now, countless atoms across the universe are coalescing—hydrogen clouds collapsing to form new stars, demonstrating that the same Latin word describes both tiny molecular and cosmic-scale processes.
Complete word intelligence in one call. Free tier — 50 lookups/day.