ἐκλείπω

Κατὰ γὰρ τὸν αὐτὸν χρόνον οἷς μὲν ὁ ἥλιος ὅλος ἐκλείπει, οἷς δὲ τὸ ἥμισυ, οἷς δὲ τὸ ἔλαττον τοῦ ἡμίσεος, οἷς δὲ τὴν ἀρχὴν οὐδὲν μέρος τοῦ ἡλίου ἐκλελοιπὸς θεωρεῖται.

‘For at the same time, for some the Sun is eclipsed whole, but for some half of it, and for some less than half, and for some no part of the Sun at all is observed to have been eclipsed.’

Διόπερ οὐδὲ ῥητέον αὐτὰς κυρίως ἐκλείψεις, ἀλλ’ ἐπιπροσθήσεις. Τοῦ μὲν γὰρ ἡλίου οὐδὲ ἕν μέρος οὐδέποτε ἐκλείψει· ἡμῖν δὲ ἀθεώρητος γίνεται διὰ τὴν ἐπιπρόσθησιν τῆς σελήνης.

‘And therefore, it should not be said that these [solar eclipses] are ‘failings’ in the proper sense, but rather ‘coverings’. For not one part of the Sun will ever ‘fail’: it becomes invisible to us due to the covering by the Moon.’