211. The declensions of (1) ἐλπίς, ἐλπίδος, ἡ, a hope, (2) νύξ, νυκτός, ἡ, a night, and (3) ἄρχων, ἄρχοντος, ὁ, a ruler, are as follows:
| ἐλπίς, ἡ, stem ἐλπιδ- | νύξ, ἡ, stem νυκτ- | ἄρχων, ὁ, stem ἀρχοντ- | ||
| sg | N | ἐλπίς | νύξ | ἄρχων |
| G | ἐλπίδος | νυκτός | ἄρχοντος | |
| D | ἐλπίδι | νυκτί | ἄρχοντι | |
| A | ἐλπίδα | νύκτα | ἄρχοντα | |
| V | ἐλπί | νύξ | ἄρχων |
| pl | N, V | ἐλπίδες | νύκτες | ἄρχοντες |
| G | ἐλπίδων | νυκτῶν | ἀρχόντων | |
| D | ἐλπίσι(ν) | νυξί(ν) | ἄρχουσι(ν) | |
| A | ἐλπίδας | νύκτας | ἄρχοντας |