And elenchus made me think of entelechy, but I couldn't define it.

entelechy ,
pl. entelechia < L < Gr entelecheia, actuality < en telei echein < en, in + telei, dat. of telos, end, completion + echein, to hold: see SCHEME
1 in Aristotelian philosophy, the actualization of potentiality or of essence
2 in vitalism, the inherent force which controls and directs the activities and development of a living being