aizar = sister (noun) (some things Google found for "aizar": an uncommon term: Aizar Schools in Pakistan; an unusual masculine first name; a rare last name; name of several gaming characters; Aizar S.L. is an air conditioning and heating company in Spain; similarly named Aizarna is a place in the Basque region of Spain)
Word derivation for "sister" :
Basque = ahizpa, Finnish = sisar
Miresua = aizar
My previous Miresua word for sister was ahisa.
The word sister appears in the first paragraph of Alice's Adventures in Wonderland.