Explain the concept of Khasi collocations using the example 'bam ja', detailing why this phrase is used for 'eat rice/have a meal' instead of simply combining literal translations of 'eat' and 'rice'.

Collocation refers to the natural pairing of two or more words that frequently occur together in a language, sounding correct and conventional to native speakers, even if their individual meanings might allow for other combinations. These pairings are not always governed by strict grammatical rules but by established usage and convention. In Khasi, like any natural language, collocations are prevalent and reflect the cultural and semantic relationships preferred by its speakers. The Khasi phrase 'bam ja' serves as a clear example of a collocation. The word 'bam' is the Khasi verb meaning 'to eat' ....