Daus

2 clues
Family girls: Abbr.
Relatives of sons: Abbr.
Similar answers:
Aahedat
Aarhus
Abaculus
Abacus
Abacuses
Abadaba
Abadan
Abbaniceday
Abbeyrhoda
Abbycadabby
Abbydalton
Abcdaytimehosts
Abdominalthrust
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Abecedaria
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Abelleforadano
Aberdare