
1) Festival in ancient Athens
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https://www.crosswordclues.com/clue/anthesteria

Anthesteria, one of the four Athenian festivals in honor of Dionysus, was held annually for three days, the eleventh to thirteenth of the month of Anthesterion (the January/February full moon); it was preceded by the Lenaia. At the centre of this wine-drinking festival was the celebration of the maturing of the wine stored at the previous vintage,...
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http://en.wikipedia.org/wiki/Anthesteria

one of the several Athenian festivals in honour of Dionysus, the wine god, held annually for three days in the month of Anthesterion (February–March) ... [3 related articles]
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http://www.britannica.com/eb/a-z/a/81

Anthesteria was a Greek festival held each year in honour of the gods, particularly Bacchus and to celebrate the beginning of spring.
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http://www.probertencyclopaedia.com/browse/D1A.HTM
[Hellenic mythology] An Athenian festival in honor of the god Dionysus. Held annually for three days in the early spring to celebrate the end of winter and the maturing of the wine.
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http://www.religionfacts.com/greco-roman/glossary.htm

an important Dionysian festival celebrated in the winter in different areas of Greece; the Anthesteria involved drinking-parties and honoring the dead; during this festival, the wife of the leader (the basileus) would engage in a sacred marriage with Dionysus.
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https://www.encyclo.co.uk/local/10135

festival celebrated in autumn attended by maenads, women, and satyrs.
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https://www.encyclo.co.uk/local/10135

one of the ancient Athenian festivals composing the Dionysia; a spring festival celebrating flowers and new wine.
Found on
https://www.infoplease.com/dictionary/anthesteria
No exact match found.