part and parcel

Etymology
"Parcel" is used in its archaic sense of "an integral or component part." Originally used as a legal term.

Noun

 * 1) An integral or essential piece; that which must be done or accepted as part of something else.

Translations

 * Bulgarian: неразделна част
 * Dutch: integrerend deel
 * Finnish: erottamaton osa ; olennainen osa
 * French: partie intégrante
 * Icelandic:
 * Italian: parte integrante
 * Russian: неотъе́млемая ча́сть
 * Spanish: parte integral, parte integrante,