In a manner that follows as a result; as a consequence or subsequently.
From 'ensuing' (the present participle of 'ensue') plus the adverbial suffix '-ly'. This stacks English morphemes to create an adverb describing the manner of something that follows.
While technically grammatical, 'ensuingly' is almost never used today because English speakers prefer 'subsequently' or 'as a result'—showing how sometimes even perfect word-building rules create words that feel awkward or unnecessarily complex.
Complete word intelligence in one call. Free tier — 50 lookups/day.