naturally
From LSJ
τὰ ἀφανῆ τοῖς φανεροῖς τεκμαίρου → analyze the unknown based on the known
English > Greek (Woodhouse)
adverb
according to nature: P. κατὰ φύσιν.
without external interference: P. ἀπὸ ταυτομάτου.
as is to be expected: P. and V. εἰκότως, ὡς εἰκός.
unaffectedly: P. and V. ἁπλῶς.
by one's own powers: P. and V. οἴκοθεν.