KanjiJLPT N1
From

from, possessive particle, whereupon, accordingly

Mnemonic

An image of a clenched hand taking from from the rich and giving to the poor.

Details

The keyword for 乃 is from. This kanji is an archaic character that conveys the sense of "from" or "of," indicating origin or belonging. In classical Japanese and Chinese texts, it functioned as a grammatical particle linking one thing to its source or expressing a consequential relationship. Though rarely used in modern everyday writing, it still appears in formal contexts and personal names, carrying an elegant, old-fashioned quality.
On'yomi
ない、だい、の、あい
Kun'yomi
の、すなわ.ち、なんじ