famti gismu

x1 is an aunt/uncle of x2 by bond/tie x3; x1 is an associated member of x2's parent's generation.

See also bruna, mamta, mensi, patfu, rirni, tamne.

In notes:

bruna
x1 is brother of/fraternal to x2 by bond/tie/standard/parent(s) x3; [not necess. biological].
mamta
x1 is a mother of x2; x1 bears/mothers/acts maternally toward x2; [not necessarily biological].
mensi
x1 is a sister of/sororal to x2 by bond/tie/standard/parent(s) x3; [not necessarily biological].
patfu
x1 is a father of x2; x1 begets/sires/acts paternal towards x2; [not necessarily biological].
rirni
x1 is a parent of/raises/rears x2; x1 mentors/acts parental toward child/protege x2.
tamne
x1 is cousin to x2 by bond/tie x3; [non-immediate family member, default same generation].