Greek letter Crossword Clue

• (noun)
  1. a terrorist organization organized in 1959 by student activists who were dissatisfied with the moderate nationalism of the traditional Basque party; want to create an independent homeland in Spain’s western Pyrenees
  2. the 7th letter of the Greek alphabet

• GREEK (noun)
  1. the Hellenic branch of the Indo-European family of languages
  2. a native or inhabitant of Greece
• GREEK (adjective)
  1. of or relating to or characteristic of Greece or the Greeks or the Greek language
• LETTER (noun)
  1. the conventional characters of the alphabet used to represent speech
  2. an award earned by participation in a school sport
• LETTER (verb)
  1. mark letters on or mark with letters
  2. set down or print with letters

• PHI
  (3 letters)
• DELTA
  (5 letters)
• EPSILON
  (7 letters)
• PSI
  (3 letters)
• Upsilon
  (7 letters)
• THETA
  (5 letters)
• CHI
  (3 letters)
• TAU
  (3 letters)
• RHO
  (3 letters)
• BETA
  (4 letters)
• LAMBDA
  (6 letters)
• IOTA
  (4 letters)
• ALPHA
  (5 letters)
• OMEGA
  (5 letters)

Unscramble the letters below to solve for today's answer.
ATE