τέλος δεδωκώς Xθύλου, σoι χάριν φέρω → having given the end of Cthulhu, I confer a favor on you
P. κολυμβᾶν, κατακολυμβᾶν.
dive from: V. ἐκκολυμβᾶν (gen.).
dive (from a ship): P. ἀποκολυμβᾶν (absol.).