πλῆσαι

From LSJ

οὐ γὰρ συμφύεται τὰ πεπηγότα ὤσπερ τὰ ὑγρά (Aristotle, Meteorologica 348a.14) → since solid bodies/frozen drops cannot coalesce like liquid ones

Source

French (Bailly abrégé)

inf. ao. de πίμπλημι.

Dutch (Woordenboekgrieks.nl)

πλῆσαι inf. aor. act. van πίμπλημι.

Russian (Dvoretsky)

πλῆσαι: inf. aor. к πίμπλημι.