The first cousin of your great great great grandmother is your first cousin, five times removed.
1st cousin 2x removed
Your great great grandmother's sister's great great grandson is your third cousin, twice removed.
First cousins twice removed.
Your great grandmother's first cousin is your first cousin three times removed.
Your great grandmother's first cousin's grandson is your third cousin once removed
Your grandmother's first cousin's grandson is your third cousin.
My ancestors
Your great uncle's granddaughter is your second cousin.
It would technically be considered your half- cousin since you do have the same grandmother but a different grandfather.
If your grandmother's sister was a cousin (presumably first cousin) to your husband's grandfather, then your grandmother was also first cousin to your husband's grandfather. You and your husband have a great great grandparent in common and are third cousins to each other.
If you and someone else have grandmothers who were First Cousins, the parents of those grandmothers were siblings and you and someone else have great-great-grandparents in common. Therefore you and someone else are Third Cousins.
The daughter of your great aunt is:a first cousin of one of your grandparentsa first cousin once removed of one of your parentsyour first cousin twice removed