This is mandarin, 吉祥! Ji Xiang! It means optimistic and auspicious. Having characters like this, 福 (fu, good fortune, luck) around you as either decorations, or clothing/jewelry is very common in Chinese culture and is thought to bring good luck, happiness, and whatever else the characters are associated with :)!
Answer: its a form of saying hello in English, so Ello is a form of hello in English mainly used in Britain for the quote “Ello mate”
Answer:
https://www.lancaster.ac.uk/staff/gyaccp/geography%20and%20religion.pdf
in that pdf you can find what your looking for.