What is the meaning of Apud?

Used in scholarly works to cite a reference at second hand

near

next to, beside, alongside, adjacent to

next to, beside, by, immediate vicinity

next to; together with

at, by, near, among

1. at the house or residence of; chez

at the house or residence of; chez

before, in the presence of, in the writings of, in view of

with (denoting rest and nearness)

food between teeth

apud (introduces an indirect citation)

apud

Source: wiktionary.org