There is no letter 'x' in Latvian language. There are also no q, w and y.
A three letter word that ends in the letter x could be the word Hex. A hex is a witches curse or spell.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern Q-IXO---. That is, eight letter words with 1st letter Q and 3rd letter I and 4th letter X and 5th letter O. In alphabetical order, they are: quixotes quixotic quixotry
Its ''Chi'', for the letter x.
xis
2 x 2 x 3 x 5 x p x p x q x q x q = 60p2q3
A seven letter word using the letters would be: virtual.
2 x 2 x q x q x 3 x 3 x 3 x r x r x r x r
q = 3
Q Quail V Vulture X X-Ray Tetra (fish)
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern Q--X---Y. That is, eight letter words with 1st letter Q and 4th letter X and 8th letter Y. In alphabetical order, they are: quixotry
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -Q--N-X. That is, seven letter words with 2nd letter Q and 5th letter N and 7th letter X. In alphabetical order, they are: equinox