Proper noun
(linguistics) The oldest attested form of Malay language.
(linguistics) The ancestor of Malay language (all form and dialects), spoken in Sumatra from about 1,000 BCE.
Synonyms: Proto-Malay, Ancient Malay
Coordinate terms: Classical Malay, Standard Malay
(nonstandard, colloquial, proscribed) Archaic Malay speech or writing, or an imitation of this: "old" Malay.
Source: en.wiktionary.org