τἀν
From LSJ
Μεγάλοι δὲ λόγοι μεγάλας πληγὰς τῶν ὑπεραύχων ἀποτίσαντες γήρᾳ τὸ φρονεῖν ἐδίδαξαν → The great words of the arrogant pay the penalty by suffering great blows, and teach one to reason in old age
English (LSJ)
Attic crasis for τὰ ἐν.
German (Pape)
[Seite 1066] att. zsgzgn statt τὰ ἐν.
French (Bailly abrégé)
crase att. et poét. p. τὰ ἐν.
Russian (Dvoretsky)
τἀν: in crasi = τὰ ἐν.