froeliches neues jahr 點解?

This is German. It should be written in this way: fröliches Neues Jahr
it means Merry new year

fröhlich: adj. cheerful, (lustig=funny) a. merry
neu: adj. new
Jahr: n. das Jahr, year

if you want to sent greet someone to have a happy new year, then you should said in these ways:

to someone you know very well (e.g. relatives, someone who younger than you, friends, etc): ich wünche dir ein fröliches Neues Jahr

to someone you don't know very well (e.g. the first time to meet, your boss, working college, etc) : ich wünche Ihnen ein fröliches Neues Jahr

呢句應該係德文，唔係俄文

it means
HAPPY NEW YEAR

froelich = happy
neu = new
Jahr = Year

Jahr = das Jahr,
therefore the adjectives agree with the neuter word => foreliches neues jahr

hope this helps ^_^
happy new year to u ^_^