Editing Isan language (section)

===Tai Noi script===
{{Further|Tai Noi script}}
[[File:Tai_Noi_consonants.png|thumb|left|The consonants of the old Tai Noi alphabet. Letter shapes have been preserved, with few changes, in the modern Lao alphabet.]]
The original writing system used for Isan was the ''Akson Thai Noi'' ({{langx|tts|อักษรไทน้อย}} {{IPA|/ʔǎk.sɔ̆ːn tʰâj nɔ̏ːj/}}, cf. {{langx|lo|ອັກສອນໄທນ້ອຽ}} BGN/PCGN ''Akson Tai Noy''), 'Little Tai alphabet' or ''To Lao'' ({{langx|tts|โตลาว}} {{IPA|/tòː láːw/}}, cf. {{langx|lo|ໂຕລາວ}}), which in contemporary Isan and Lao would be ''Tua Lao'' ({{langx|tts|ตัวลาว}} {{IPA|/tùa lâːw/}} and {{langx|lo|ຕົວລາວ}}, respectively, or 'Lao letters.' In Laos, the script is referred to in academic settings as the ''Akson Lao Deum'' ({{langx|lo|ອັກສອນລາວເດີມ}} {{IPA|/ʔák sɔ̆ːn láːw d̀ɤ̀ːm/}}, cf. {{langx|tts|อักษรลาวเดิม}} RTGS ''Akson Lao Doem'') or 'Original Lao script.' The contemporary Lao script is a direct descendant and has preserved the basic letter shapes. The similarity between the modern Thai alphabet and the old and new Lao alphabets is because both scripts derived from a common ancestral Tai script of what is now northern Thailand which was an adaptation of the [[Khmer script]], rounded by the influence of the [[Mon script]], all of which are descendants of the [[Pallava script]] of southern India.<ref name="ronn"/>