In Sri Lanka, the traditional greeting is the _ayubowan_ (ආයුබෝවන්). This word is derived from the Sanskrit word _ayu_ (life) and the Sinhalese word _bovan_ (to come). It is used to wish someone a long and healthy life.
When greeting someone, it is customary to place the palms of the hands together in front of the chest and bow slightly. This gesture is called the _anjali mudra_ and is a sign of respect.
It is also common to say the phrase _vanakkam_ (වණක්කම්) when greeting someone. This word is derived from the Tamil word _vanakkam_ (to bow down) and is also used as a greeting in India.
When greeting someone of a higher social status, it is customary to use the honorific title _ayya_ (අයිය) for men and _amma_ (අම්මා) for women. These titles are derived from the Sanskrit words _arya_ (noble) and _amba_ (mother).
When greeting someone of the same social status, it is customary to use the name of the person followed by the suffix _ge_ (ගෙ). For example, if someone's name is Nimal, you would greet them by saying "Nimalge ayubowan".
When greeting someone of a lower social status, it is customary to use the name of the person followed by the suffix _da_ (ද). For example, if someone's name is Renuka, you would greet them by saying "Renuka da ayubowan".
It is important to note that the social hierarchy in Sri Lanka is based on a number of factors, including caste, ethnicity, and religion. As a result, the way in which people greet each other can vary depending on their social status.