เปรียบเทียบวิธี

	การสร้างโครงสร้างภาษาภายใน	ระเบียบวิธีเปรียบเทียบ
สาขาวิชา	ภาษาศาสตร์	ภาษาศาสตร์
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1891	1786
ผู้ริเริ่ม	Henry Heffner Hock	Sir William Jones
ประเภท	Empirical process pipeline	Empirical process pipeline
แหล่งต้นตำรับ	Hock, H. H. (1991). Principles of Historical Linguistics (2nd ed.). Berlin: Mouton de Gruyter.	Hock, H. H. (1991). Principles of Historical Linguistics (2nd ed.). Berlin: Mouton de Gruyter.
ชื่อเรียกอื่น	Interlingual Reconstruction, Diachronic Morphology	Historical Comparative Linguistics, Genetic Linguistics
ที่เกี่ยวข้อง	3	4
สรุป	Internal Reconstruction is a historical linguistic method that reconstructs earlier stages of a single language by identifying internal inconsistencies, morphological irregularities, and distributional patterns within the language itself. Unlike the Comparative Method, which relies on comparing related languages, Internal Reconstruction uses evidence from within one language—such as suppletive forms, analogy-induced irregularities, and phonological asymmetries—to infer its historical structure and sound changes. This method is particularly valuable when only one written form of a language survives or when related languages are unavailable.	The Comparative Method is a foundational technique in historical linguistics for reconstructing ancestral languages and establishing genetic relationships between related languages. Pioneered by Sir William Jones in 1786, it systematically compares phonological, morphological, and lexical features across languages to identify regular sound correspondences and trace their shared origins. This method underpins modern historical linguistics and has been essential for understanding language families worldwide.