Where does “連濁” come from?

連濁 (Japanese) comes from Japanese 連, from Middle Chinese 連.

連濁 (Japanese): a morphological change of an initial syllable of...

Definitions

Step	Language	Word	Meaning
1	Japanese	連	take along, lead, join, connect; linking,...
2	Middle Chinese	連	—

連濁 — Etymology, Origin & Word History | Etymology Explorer