Chad

Origin: English, African

Meaning: comes from Old English Ceadda of unknown meaning though possibly based on Welsh cad “battle”. It’s also the name of an African country (which is also spelled Tchad), the Republic of Chad. One site claims its name comes from a lake, Lake Chad, meaning “large expanse of water”. According to Wikipedia, Chad is derived from Kanuri tsade “lake”. Kanuri is a dialect continuum, “a range of dialects spoken across some geographical area that differ only slightly between neighboring areas, but as one travels in any direction, these differences accumulate in such a way that speakers from opposite ends of the continuum are no longer mutually intelligible.” (Wikipedia)

Cato, Kato

Origin: Ancient Roman, Dutch, Hungarian, Japanese, African, Eastern African (Luganda), Ganda

Meaning: wise; “pure, chaste” or “each of the two; singly”; “torture” or “my consecration of your name”; “add/increase” + “wisteria”; “second of twins”

In Latin, Cato means wise and is the name of several Roman figures. It’s also the short of feminine names Catharina (Dutch) and Katalin (Hungarian), both of which come from Katherine which has several possible meanings: “pure, chaste” or “each of the two; singly”; “torture” or “my consecration of your name”. This would make it a unisex name.

Spelled Kato, it becomes a Japanese surname meaning “add/increase” + “wisteria” (加 藤 ); it’s also spelled  Katō or Katou. It would be pronouced “ka-to” rather than “kay-to”.

It’s also an African male name in Luganda meaning “second of twins”.