the compound adjective 'still-developing' is a modern english formation that layers temporal and processual concepts. the adverb 'still', with its old english roots conveying a state of continuance, modifies the present participle 'developing'. the verb 'develop' entered english via french, tracing back to the latin idea of 'unfolding' or 'unwrapping' (dis- + voloper). thus, the word's literal logic is "continuing to unfold or grow," a meaning which maps directly onto its modern abstract sense describing anything in an ongoing state of progression or maturation, from economies to ideas.

Structure: still (adverb) + develop (verb) + ing (adjective suffix) - still: from old english stille (motionless, at rest, quiet); functions as an adverb meaning 'continuing until now or a specified time'. - develop: from old french desveloper, based on latin dis- (apart) + voloper (to wrap); functions as a verb root meaning 'to grow or cause to grow'. - ing: from old english -ende, -inge; functions as a suffix forming present participles and adjectives from verbs.