The Old Norse word edda
Word edda
e d d a
Meaning great grandmother

Other words that might be of interest
moþir ‘mother’, bryþr ‘brother’, burr ‘son’, sonr ‘son’, kvenna ‘woman’, barn ‘child’, dottir ‘daughter’, faþir ‘father’, faþurbroþir ‘uncle (fathers side)’, dóttir ‘daughter’, sonarkván ‘daughter-in-law’, afkæmismaðr ‘descendant’, afkomandi ‘descendant’, metorðabarn ‘female child, girl’, genta ‘girl’, píka ‘girl, lass’, sonarsonr ‘grandson’, lébarn ‘infant’, karl ‘man’, eyrarúna ‘mistress, wife’, sunr ‘son’, spúsa ‘spouse, wife’, eiðhúsfrú ‘wife’, kona ‘woman’, kvinna ‘woman’, ætt ‘family’