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The word stalactites could not be parsed. Trying a normal dictionary lookup:
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† stălagmĭas, ae, m., = σταλαγμίας, a natural vitriol, which distils in drops, Plin. 34, 12, 32, § 124.
† stălagmĭum, ii, n., = σταλάγμιον, an ear-drop, pendant, Plaut. Men. 3, 3, 18; Caecil. ap. Fest. p. 317 Müll. (Com. Rel. p. 45 Rib.).
Stālagmus, i, m., the name of a slave, Plaut. Capt. 4, 2, 95.