St Patrick's Day

2. An arc of colored light on the sky caused by refraction of the sun's rays by rain
4. A staple food of Ireland
8. An inherited pattern of thought or action
11. Another word for a 3-leafed clover
12. A mischievous elf in Irish folklore
16. The color of growing grass
17. Invoke upon
18. To publicly party
20. A small being, human in form, playful and having magical powers
21. A story about mythical beings or events
22. Something likened to the metal in brightness or preciousness
23. To march in a procession
25. Highly valued as a gemstone

1. Christian missionary and Bishop of Ireland
3. The Celtic language of Ireland
5. A month in the year
6. A special kind of clover
7. A humorous verse form of 5 anapestic lines with a rhyme scheme aabba
9. The day of the month of St. Patrick's Day
10. Occurring by chance
13. An occasion where people assemble for social interaction
14. Any art that invokes supernatural powers
15. Achieved independence from the UK in 1921
19. A plant of the genus Trifolium
24. A branch of the Indo-European languages that was spread widely over Europe in the pre-Christian era