First attested in 1283. From the repeated-d(diminutive suffix). Originally, it was a diminutive suffix (cf.kisded). Today it is used to express similarity just like the suffixes-féle and-szerű.[1]
-dad
Inherited fromOld Spanish-dat, fromLatin-tātem, fromProto-Indo-European*-teh₂ts.
-dad f (noun-forming suffix,plural-dades)