Would you like to save names or email names
to a friend?
Sign up here.


First name origin & meaning:

Latin: Rejoice; variation of Gaius

First name variations: Caio, Kay, Kaye, Keye, Keyes, Keys, Cais, Caius

Last name origin & meaning:

Chinese: from the name of the former state of Cai, in present-day Henan province. When the Zhou dynasty displaced the Shang dynasty in 1122 bc, the defeated Shang were allowed to rule in the area of their old capital of Yin, under the stewardship of Zhou appointees. However, these Zhou appointees, among them Cai Shu, the 14th son of Wen Wang and younger brother of the new king, joined forces with the Shang in revolt. After the rebellion was suppressed, Cai Shu was banished, but his son was granted the state of Cai along with the title Earl of Cai. His descendants later adopted the place name Cai as their surname. Other spellings of this name, due to dialect differences and variation in Romanization, include Tsai, Choi, Choy, and Tsoi.

Comments for Cai


Top 2015 Halloween Costumes for Kids
Will your child transform into a dinosaur, a superhero, or the latest Disney princess on October 31? Take a look at 2015's hottest Halloween costumes for boys and girls of all ages!

Find Today's Newest & Best Children's Books!
Looking for newly released books for your child? Try our new Book Finder tool to search for new books by age, type, and theme, and create reading lists for kids!

8 Not-Too-Spooky Halloween Activities for Kids
Halloween can be too scary and gory for preschoolers and kids of all ages. Find non-scary Halloween activities and party ideas that make this creepy holiday more kid-friendly.

Ready for Kindergarten?
Try our award-winning Kindergarten Readiness app! This easy-to-use checklist comes with games and activities to help your child build essential skills for kindergarten. Download the Kindergarten Readiness app today!

Find out what is happening in each day of your pregnancy!

My due date:

Pregnancy Day By Day

stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Facebook icon Follow Us on Pinterest