προειςβάλλω

A. throw in a remark before, περί τινος Socr. Ep. 36.
II. intr., start, make a beginning, ἀπὸ τοῦ φόβου Longin. 22.2.
2. supervene, come on before, τῆς ὥρας Aët. 5.23.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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