Pentjak means 'skillful choreography that may have some use in combat'. It can imply a certain 'refinement' and practice by more upperclass people. Pukulan means 'the study of the striking/colliding of bodies' ('pukul', to collide- 'an', the study of). Pukulan is often thought of as 'rough brawling' and has somewhat of a lower class connotation or a rural connotation ('hicks and hayseeds'

. Pentjak may be a pusaka (holy legacy art) and is to be passed down unchanged. Pukulan is a 'beladiri', a personal shield art, changes with new information and isn't as concerned with lineage. My own art is considered 'pukulan' soas not to imply a lineage affiliation, to imply the rough brawling aspect and to reflect the simplicity and direct action inherent in the practice. As I'm not a native speaker, this is just the result of oral transmission of the meaning and connotation.
Chas
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