οὐ γὰρ συμφύεται τὰ πεπηγότα ὤσπερ τὰ ὑγρά (Aristotle, Meteorologica 348a.14) → since solid bodies/frozen drops cannot coalesce like liquid ones
vestīgātĭo: ōnis, f. vestigo,
I a tracing or searching after (post-class.): Psyche dies noctesque mariti vestigationibus inquieta, App. M. 6, p. 173.
vestīgātĭō, ōnis, f. (vestigo), action de chercher [qqn], recherche : Apul. M. 6, 1.