As a child you must have been told to greet your elders and visitors to your home according to your culture and tradition. You must also have been taught to be polite in company and keep quiet while others, especially your elders, spoke. Possibly, you at times grudged such schooling. Possibly, at times you even protested such disciplining. Now, certainly you know that you can't always behave the way you want specially in the presence of others. There are rules of behaviour you have to follow in a company. We are social beings and have to consider the effect of our behaviour on others, even if we are at home and dealing with our family members.
We have two terms to describe our social behaviour- 'etiquette' and 'manners'. 'Etiquette' is a French word and it means the rules of correct behaviour in a society. The word 'manners' means the behaviour that is considered to be polite in a particular society or culture. Manners can be good or bad. For example, it is a bad manner to speak with food in one's mouth. No one likes a bad- mannered person. Remember that etiquette and manners vary from culture to culture and from society to society.
The closest meaning for 'grudge' is -