script, with dots for most of the Arabic-derived letters ( ب ، ت ، ج ، ش ، ق ، ن ، ي ) and native Jawi letters ( چ ، ݢ ، ڠ ، ڤ ), being not visible, except for the letters ( ڽ ، ض ، ف ). Jawi spelling system The spelling system of the Inscribed Stone of Terengganu has similarities with modern Jawi spelling system in a number of areas: Use of the Letters tāʼ marbūṭah (ة) and tāʼ maftūḥah (ت) - For present-day spelling, Dewan Bahasa dan Pustaka has determined that the /t/ sound in Malay words should be denoted in Jawi script by tāʼ maftūḥah, whereas the /t/ sound in words particularly special nouns, borrowed from Arabic should be retained in its original form with tāʼ marbūṭah, except for common words that have been absorbed by and are regularly used in Malay such as rakyat (people) ( رعيت ), nikmat (grace) ( نعمت ), hikmat (wisdom) ( حکمت ) and berkat (blessing) ( برکت ). This system was established in the Inscribed Stone as per below table, where Arabic loanword which is a special noun, Jumaat (Friday) (جمعة) does not change. Use of the Letter Qāf (ق) in final closed syllables - In the present-day Jawi spelling system, all glottal stops in final closed syllables of Malay words are spelt with qāf, while the consonant sound /k/ in the final closed syllable of English loanwords is spelled with kāf such as abstrak (abstract) ( ابسترک ), plastik (plastic) ( ڤلستيک ) and kek (cake) ( كيک ). For Arabic loan words, the spelling of the source language is maintained such as for isyak ( عشاء ), imsak (the time to stop suhoor slightly before Fajr) ( امساک ), rujuk (refer) ( روجوع ) and talak (divorce) ( طلاق ). Some of the glottal stops in final closed syllables represented by letter qāf in the Inscribed Stone, are shown in the following table. Use of the Letter Nya (ڽ) - Based on the consonants found on the Terengganu Inscribed Stone, there were consonant sounds in Classical Malay that were not found in the Arabic alphabet. Letters of this type include ca (چ) in acara (event) ( احارا ), nga (ڠ) in dengan (with) ( دعں ), pa (ڤ) in pada (to) ( فدا ), ga (ݢ) in pinggang (waist) ( ڡعكع ), and nya