古汉语词由词根和形态成分构成,早期的字音有*C-l-和*Cl-的不同。上古中期(BC770-256)*C-l-演变为*Cl-,如*ɡ-l-和*s-l-可成为*ɡl-和*sl-,或简化为*ɡ-(*ɡ~w-)、*s-、*l-等。上古晚期如*sl-可演变为*hlj-(书母)、*th-(透母),l-演变为*lj-(余母)、*z-(邪母)等。受西部方言影响,*-t读作-d,与*-l(*-r)尾字可互谐。 Ancient Chinese words by the root and morphological components, the early pronunciation of * C-l- and * Cl- of the difference. In the middle of Middle Ages (BC770-256) * Cl- evolves into * Cl-, such as * ɡ-l- and * sl- can become * ɡl- and * sl-, or simplified as * ɡ - (* ɡ ~ w-) * s -, * l- and so on. Late ancient times such as * sl- can be evolved into * hlj- (book mother), * th- (through the mother), l- evolved into * lj- (remnant), * z- (evil mother) and so on. Affected by the western dialect, * - t is pronounced -d, and * -l (* - r) tail are mutually harmonic.