familja - family

OMM   mother   from Arabic   أم (umm)
MISSIER   father   from Sicilian   misseri
​ĦU    brother     from Arabic   أخ   (akh)
​OĦT    sister     from Arabic  أخت   (ukht)
​KUĠIN    cousin (male)     from Sicilian/Italian   cuscinu/cugino
​KUĠINA   cousin (female)   from Sicilian/Italian   cuscina/cugina
​ZIJU   uncle    from Sicilian   ziu
​ZIJA   aunt   from Sicilian   zia
​NANNA   grandmother    from Sicilian   nanna
​NANNU   grandfather   from Sicilian   nannu

Despite being a Semitic language related to Arabic and Hebrew, Maltese has borrowed many terms from Sicilian to refer to family members. 

Some Arabic-derived terms for family members have fallen into disuse in Modern Maltese [1] [2] [3]:

ab/bu/abu   (father)
għamm   (paternal uncle)
għamma   (paternal aunt)
ħal   (maternal uncle)
ħala   (maternal aunt)
ġid   d   (paternal grandfather)

Even some Romance-derived terms are no longer used [4]:
barba (maternal uncle)