Horas
Horas is the Batak word to express gratefulness, happiness, and healthiness, however it is more commonly used as a simple greeting and goodbye. It is the equivalent to "hello" or "goodbye". This word can be found in every Batak languages, with a few exceptions being; Batak Dairi and Batak Karo. The Batak Karo and the Dairi Batak has their own greetings which is mejuah-juah or njuah-juah.