अव्ययाश्चादयो निपाताः ॥ कZ_०२.१०.१९ ॥
avyayāś cādayo nipātāḥ
ca(「そして」)などの不変化詞(nipāta)は、不変化語(avyaya)である。
Because connectors and particles govern scope (addition, contrast, condition), which is critical for interpreting rules, exemptions, and multi-step procedures.