hey, there's a lot of unused canon-ish names, no shortage at all! blades? oriental: katana, wakizashi, tanto, daito, naginata, yari... shuriken for pete's sake. a training ship named boken or shinai?
exotic: khukuri (kukhri, kukri), kris (sundang), I suppose you can get a couple more if you search some knife freak forums
was there a "greatsword" ship, by the way? a neat name, fits our broadswords and epees... or a "longsword"? bastard swords have no one-word name; a pity: it's a great weapon
flamberge? claymore?
medieval weapons in general? arbalests, trebuchets and ballistas (it's a bomber name, what?) - oh, and shortbows, and halberds, and pikes, warhammers, flails, and whatnot.
and then there are several more traditions: big predators (mostly cats), insects, fantasy creatures. we have wildcat and bearcat, hellcat and tigershark piranha and panther, hornet and wasp, vampire and demon, banshee and phantom. we could have... oh, any damn thing. pumas and jaguars, cougars and direwolves, unicorns and werewolves, tarantulas and scorpions (scorpion is a medieval war machine, too
we need relatively well-known, neat names. and we can have them! no need to resort to batorowkas and scramasaxes