You could use Treva.
Trisha.
It is likely that Trevette as a first name is a female version of Trevor, a Welsh name.
There is no female form of the name Liam but Liam is short for William which has the female form of Willamina.
Trevor Brolin's birth name is Trevor Mansur Brolin.
The Hawaiian name for Trevor is Kealoha.
Trevor Linden's birth name is Trevor John Linden.
Trevor Sorbie's birth name is Trevor John Sorbie.
Trevor Ariza's birth name is Trevor Anthony Ariza.
Trevor Insley's birth name is Trevor C. Insley.
Trevor Immelman's birth name is Trevor John Immelman.
Trevor Hoffman's birth name is Trevor William Hoffman.
Trevor Horn's birth name is Trevor Charles Horn.
Trevor Donovan's birth name is Trevor Donovan Neubauer.