مدغم

mudgim (act. part. of ادغم 'to insert, or incorporate (one letter into another),' iv of دغم 'to cover; to come upon,' etc.), part. adj. Inserting, or incorporating (a letter); joining two letters (by tashdīd):—mudg̠am (pass. part. of the same verb), part. Inserted (as one letter into another); doubled (by tashdīd).