προενιδρύω
From LSJ
ἐξ ὀνύχων λέοντα τεκμαίρεσθαι → judge by the claws, judge by a slight but characteristic mark, small traits give the clue to the character of a person, deduce something from a small indication, identify a lion from its claws
English (LSJ)
set first as foundation, set up beforehand, establish beforehand, Iamb. Myst.5.23 (Pass.).