Unnumbered source etymology
Original entry ↗A mythological serpent with many heads, slain by Hercules as one of his twelve labours. · A spring constellation of the northern sky, said to resemble a serpent. It lies just south of the zodiac and contains the star Alphard. · One of Pluto's moons. · One of the Saronic Islands in the Aegean Sea.
From Latin Hydra, the mythical serpent, originally from Ancient Greek ὕδρα (húdra), from Proto-Indo-European *údreh₂ (“aquatic”). Doublet of otter.
Relationships mentioned by the source
These are extracted mentions, not a timeline or a verified sequence of immediate parents.
This page abbreviates 1 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.
Inspect preserved source fields
Raw extraction fields are retained for auditing. Their order does not establish ancestry.
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