θι
From LSJ
Οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → Silere non est turpe, sed frustra loqui → nicht Schweigen schändet, sondern Schwätzen auf gut Glück
English (LSJ)
termin. of the locative case,
A Ἰλιόθι πρό Il.8.561; ἠῶθι πρό 11.50. II termin. of several locative Advs. formed from Substs., Adjs., and Prons., ἀγρόθι, οἴκοθι, ἄλλοθι, etc., cf. A.D.Adv.205.35, al.