"Or" (אור).
Variants include 'Ora', 'Orit', and names like 'Orli', which means 'my light'. These are all girls' names.
Meir for a boy or Meira for a girl also mean 'light'.
Little light = Or katan (אור קטן)
The Hebrew word for little is katan (קטן) The Greek word for little is ligos (λίγος)
Karen Little is not in the Hebrew Bible. But if you are asking how to write "Karen Little" in Hebrew, it's קרן ליטל (read from right to left). The name Keren is in Job 42:14.
in the light = ba'or (באור)
"Or" (אור).
The light
If you're asking how to say "You speak a little Hebrew" in Hebrew, it's to a male: atah medaber ktsat ivrit to a female: at medaberet ktsat ivrit
"Brogan" is not a Hebrew name. Brogan is an Irish name that means "little shoe."
"amior" is not a recognizable Hebrew word, but it could be a person's name, and if so, it means "my people is light" or "my people of light"
"Kerr" has no meaning in Hebrew. Only Hebrew words have meaning in Hebrew.
The Hebrew meaning of Ori is "my light" or "my fire." It is a unisex name that can be given to both boys and girls.
Katan (קטן)
Light is a symbol of wisdom in the Jewish religion.