step-great-grandparent-in-law

Spouse's step-great-grandparent.

step-great-grandparent-in-law.

pibling

1- Parent's sibling.
2- Uncle or aunt.

Pibling.

step-co-sister-in-law

Spouse's stepsibling's wife.

step-co-sister-in-law.

first-cousin-once-removed-in-law

1- First-cousin-once-removed's spouse.
2- Spouse's first-cousin-once-removed.

first-cousin-once-removed-in-law.

stepparent

Parent's spouse and non-parent.

stepparent.

stepnibling-in-law

1- Stepnibling's spouse.
2- Spouse's stepnibling.

stepnibling-in-law.

great-grandmother

Grandparent's mother.

Great-grandmother.