'Deshita' is the past tense of 'desu'. 'Desu' is a copula in Japanese that acts much similar to 'to be' in English in its "linking verb/copula" role.
Example:
He is happy <-> Kare wa ureshii desu.
They were boring. <-> Aitsura wa tsumaranai deshita.
In addition to this sort of usage, it can also be used in other expressions/sentences to provide 'tense' for the phrase/expression.
Example:
Sumimasen deshita <-> I'm sorry. (About something that has already happened.)
Shia Deshta? The above is not correct. "Geimu/shiai wa dou deshita?" would work.
This is not a Japanese word.
Japanese does not have a word for "it."
Abbi does not appear to be a Japanese word.
The Japanese word for cute is Kawaii, The Japanese word for scared Kowai
This is not a Japanese word.
Vusu can not be a Japanese word.
Yes. It is a Japanese word.
Japanese word for surender
there is no word bhaga in japanese, baka is fool
There is no such word in Japanese - shrine is an English word.
There is no equivalent word in Japanese for the English word "a."