*Perkʷūnos

In comparative reconstruction, *Perkʷūnos is not an attested narrative figure but a hypothetical thunder‑deity posited by scholars studying recurring correspondences across daughter Indo‑European mythologies. The reconstructed pattern presents a storm/thunder hero who combats a multi‑headed water‑serpent that has confined or obstructed waters; the thunder‑deity’s victory releases these waters and restores fertility. This account summarizes a widely attested motif across descendant traditions rather than a single preserved Proto‑Indo‑European text.

No contemporary or iconographic descriptions from the Proto‑Indo‑European period survive; appearance is unknown. Any visual or bodily attributes attributed to *Perkʷūnos are inferred indirectly from later Indo‑European thunder deities (for example, attributes of gods like Thor, Perun, or Indra) rather than from direct evidence in the reconstruction literature.

Reconstructed attributes, inferred from comparative myth, assign *Perkʷūnos control over storm and thunder phenomena and a role in producing fructifying rains. He is also reconstructed as a combatant who defeats a multi‑headed water‑serpent to free obstructed waters, thereby restoring fertility. These abilities are scholarly inferences drawn from analogous functions of thunder‑gods in multiple Indo‑European daughter traditions rather than direct attestations from the Proto‑Indo‑European period.