A.succeeding a person in a thing:
1. c. dat. pers. et gen. rei, δ. Μεγαβάζῳ τῆς στρατηγίης his successor in the command, Hdt.5.26, cf. 1.162, etc.; θνητοῖς . . διάδοχοι μοχθημάτων succeeding them in, i.e. relieving them from, toils, A.Pr.464, cf. 1027; “σοι τῶνδε διάδοχος δόμων” E.Alc.655.
2. c. gen. rei only, δ. τῆς Ἀστυόχου ναυαρχίας succeeding to his command, Th.8.85; “δ. τῆς κληρονομίας” Isoc.19.43; “τῆς φιλοσοφίας” Epicur.Fr.217.
4. c. dat. pers. only, “δ. Κλεάνδρῳ” X.An.7.2.5: c. dat. rei, “ἔργοισι δ᾽ ἔργα διάδοχα” E.Andr.743; κακὸν κακῷ δ. ib.803; quasiact., λύπη . . δ. κακῶν κακοῖς bringing a succession of evils after evils, Hec.588; ἀγὼν . . γόων γόοις (γόων bis codd.) “δ.” Supp.72 (lyr.).
5. abs., διάδοχοι ἐφοίτων they went to work in relays or gangs, Hdt.7.22, cf. Th.1.110: neut. pl. as Adv., in turn, E.Andr.1200(lyr.).
b. the lowest grade of court officials at Alexandria, OGI100.4, PAmh.2.36.5, PRyl.67.2 (both ii B. C.).
c. substitute, deputy, BGU852.4 (ii A. D.), POxy.54.7 (iii A. D.).
d. head of a school of philosophers, “τῆς σχολῆς” Phld.Ind.Sto.53; “δ. Στωικός” IG3.661, cf. 22.1009 (Epist. Plotinae).
e. a kind of gem, Plin.HN37.157.