Question

what is methnology...??

Answer 1

do you mean ethonology or methadology
any way I'll give answer for both
Methadology:
systematical,theoretical,analysis of methods applied to a field of study
Ethonology :
the study of characteristics of different people and the differences and relationships between them

Answer 2

Did you mean ethnology ? If yes then,

 Ethnology means the study of the characteristics of different people and differences and relations between them.

I don't think the word 'methnology' exists.....