nidan verb (lower class) with 'zu' ending (archaic), transitive verb
Archaic transitive verb, equivalent to modern 混ぜる (まぜる). Found in classical texts; not used in modern Japanese.
See also: 混ぜる
古典では「酒に水を混ず」のように使われた。
In classical texts, it was used like 'to mix water into sake'.
Modern equivalent; 混ず is its archaic form.
Classical Japanese verb; the exact derivation is uncertain, but it is the older form of modern 混ぜる.