Τερψιχόρη
From LSJ
ὥστε ὁ βίος, ὢν καὶ νῦν χαλεπός, εἰς τὸν χρόνον ἐκεῖνον ἀβίωτος γίγνοιτ' ἂν τὸ παράπαν → and so life, which is hard enough now, would then become absolutely unendurable
English (LSJ)
ἡ, Dor. and Att. Τερψῐ-χόρᾱ Pi.I.2.7, Pl.Phdr.259c, cf. Choerob.in Theod.2.42 H.:—Terpsichore. the Muse of the dance, Hes. Th.78, etc. 2 Pythag. name of 9, Theol.Ar.58.