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Heracles vs. Hercules

[her-uh-kleez] / ˈhɛr əˌkliz /

noun

  1. Hercules.

  2. Also called Heracles Furens(italics) a tragedy (420? b.c.) by Euripides.

[hur-kyuh-leez] / ˈhɜr kyəˌliz /

noun

genitive

Herculis
  1. Also called AlcidesClassical Mythology. Also Heracles a celebrated hero, the son of Zeus and Alcmene, possessing exceptional strength: among his many adventures were the twelve labors for his cousin Eurystheus, performed in order to gain immortality.

  2. Astronomy. a northern constellation, between Lyra and Corona Borealis.