See Photius, Lexicon phi317-318 Theodoridis (and cf. Etymologicum Magnum 801.16-18 for the same combination of glossings in reverse order). The primary headword is the present middle infinitive of the verb frua/ttomai, used mainly of high-spirited animals (and metaphorically of people). For related words see phi 746 and phi 747, and cf. phi 714.
[1] Menander fr. 1081 Kock (582 K.-A.). For the gloss, the E.M. has the middle/passive infinitive kataplh/ttesqai ("to be astounded"), which is more plausible than the Suda's active infinitive kataplh/ttein ("to astound"). Nothing is known of the context in which Menander used the word.
[2] = Synagoge phi210. This supplementary lemma is the middle participle, nominative singular masculine, of the same verb. It is presumably quoted from somewhere; extant possibilities include a likely one in the Septuagint (2 Maccabees 7.34), though Theodoridis mentions a more obscure one (Cosmas of Jerusalem, Canones 2.191).