Ya

Ya is also a name element deriving from the Hebrew language; a shortening of Yahweh, which is an ancient term for the Judeo-Christian god. It was often transcribed as “Ja” rather than “Ya,” causing certain modern English names like Jacob and Joshua to begin with “J” rather than “Y.” The “jah” in “Hallelujah” means Yahweh; Hallelujah in full means “Praise Yahweh”.

There are some feminine names that contain the element "Ya" (elegant) in my Chinese baby name book.

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Yazhi - elegant + delicate
Yayi - elegant ceremony
Yaqin - elegant zither
Yaying - elegant + overflowing
Yatian - elegant sweetness

Ya also means "noble", but then it's written with a different character. It's not true that this is only used as part of a name, it is often used on its own as well.