Proto-Malay is the name given to the very first form of the Malay language that was spoken many centuries ago. It is like the very first building block in the formation of the Malay language that we know today. Imagine building a tower with Lego blocks. The first Lego block you place down is like Proto-Malay.
Proto-Malay was spoken by people who lived in the region that is now Indonesia, Malaysia, and the Philippines. These people were the ancestors of the Malays and related ethnic groups. The language was used in everyday communication between individuals and communities, but it was not a written language.
Over time, as the people who spoke Proto-Malay interacted with other cultures and learned new things, the language evolved and changed. New words and sounds were added, and some old words were forgotten. This is like adding new Lego blocks to the tower and taking some away, changing the shape and size of the tower.
Eventually, Proto-Malay became the basis for the modern Malay language spoken by millions of people today. It is a key part of the cultural heritage of the Malay people and an important part of Southeast Asian history. But without the first Lego block, there would be no Malay language as we know it today.