When researching about Hanji I've come across many sites that relate to the word 'hanji' being used in Punjabi, one of the Indian languages.
There's a band called 'Cornershop' that made a CD in 1997 called, "When I was Born for the Seventh Time' and at the beginning of the song, which I believe was originally sung in Punjabi, they use the word Hanji.
In Punjabi both 'han' and 'ji' mean yes. When talking informally to a person they use 'han' but if speaking to an elder or a person with a superior status then they put the two words together and say 'hanji'.
You just never know when this word might be used ......