Rejoice or lovely flower
Kaijah is a modern American invention, likely created as a creative blend of the name Kai with the suffix -jah, or as a variation of the Estonian name Kaia. While its exact roots are difficult to pin down, it is often associated with meanings of joy or natural beauty in contemporary usage. Its rarity makes it a distinctive choice for parents seeking a unique sound.
Less common today
Kaijah isn't in the latest US Top 1000. It last peaked at #8,400 in 2003.
US births per 5-year period, 1990βpresent (SSA data).