he (as a king, ruler) who has lost his state, kingdom.

he who has renounced worldy life, by abandoning his children, wife, relatives, etc.

any of a genus (Hippocampus) of small, semitropical, marine bony fishes of the same family (Syngnathidae order Gasterosteiformes) as the pipefish, having a slender prehensile tail, plated body, and a head and foreparts somewhat suggestive of those of a horse; a sea-horse.