beiden

Beiden is a term that appears in Dutch and German, where it generally conveys the sense of "both." It is not a separate concept or entity on its own, but a grammatical form used in everyday languages.

In Dutch, beide and beinden? Actually both are forms of the same word family. Beide is the base form used before nouns to refer to two items, as in Beide studenten kamen gisteren (Both students came yesterday). Beiden is the independent pronoun form meaning "both of them," used when the two referents have already been identified, as in Beiden kwamen opdagen (Both of them showed up). Beiden can also function as a pronoun in compound sentences, and its use tends to appear more in formal or emphatic contexts.

In German, beid en is the word beide for the two, and beiden is the dative plural form. Beiden is used after verbs or prepositions that require the dative case, for example Ich helfe beiden (I help both of them) or Wir sprechen mit beid en über das Thema (We talk with both of them about the topic). The form beiden is also found in phrases like auf beiden Seiten (on both sides), where it marks the dative plural.

Etymology and related forms trace back to Proto-Germanic roots and share similarities across Dutch and German. In both languages, beides functions as a core determiner or pronoun to express the idea of two entities, while beiden specifically marks the dative or a pronoun reference to both.

Beiden is not a proper noun or a named entity in itself; it is a grammatical element used to express duality in Dutch and German.