Kazuya

Kazuya is a Japanese male name with a variety of meanings depending on the kanji used.  It’s made up of Japanese elements kazu meaning “one”, “harmony, peace”, 冬 “winter”; 万 “ten thousand”; 三 “three”; and ya meaning 八 “eight”; 矢 “arrow”; 也 “to be, also, too”; 哉 (a final exclamatory particle that has no particular meaning); 優 “excellent, outstanding, kind, tenderness”; 弥 “extensive, full, complete”; 夜 “night”; though there are likely other meanings as well. Kazu can also be used as given name on its own, becoming a unisex name.

Origin: Japanese

 

Seiya

Seiya is a Japanese male name with a variety of meanings depending on the kanji used. Some meanings I could find are: 世哉 “world, generation”; 星矢 “star, planet, heavenly body + arrow”; 清耶 “clear, distinct, apparent, pure + father”; 正夜 “correct, righteous + night”; 生八 “life, existence, being + eight”; 成也 “to become, to succeed, accomplish + to be, also, too”; 声弥 “voice + extensive, full, complete”; 盛哉 “prosper”; 聖野 “holy, sacred + area, field”; 世乎 “world, generation + seem to, as if”; 西椰 “west + coconut tree”; 征椰 “conquer, subdue, vanquish + coconut tree”. Though there are likely many more meanings than this.

Origin: Japanese