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δόξαν

Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται -> For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
Corpus Hippocraticum, Aphorisms 1.6.2

French (Bailly abrégé)

acc. de δόξα;
neutre de δόξας, part. ao. de δοκέω.

Russian (Dvoretsky)

δόξαν:
I acc. к δόξα.
II part. aor. n к δοκέω.