In a manner that advances or moves forward; progressively or with forward motion.
From 'advancing' (present participle of 'advance') plus the adverbial suffix '-ly.' Creates a manner adverb describing how something progresses.
This rare adverb appears mostly in 19th-century military texts describing army movements 'advancingly'—it's a beautiful way to emphasize that progress isn't accidental but deliberate, step-by-step.
Complete word intelligence in one call. Free tier — 50 lookups/day.