peruslakiensa

Peruslakiensa is a Finnish linguistic form used to mean “their basic laws” or “their constitutions.” It represents the genitive plural of peruslaki, a term that denotes fundamental laws that establish the basic legal framework of a state, federation, or organization. The form is common in scholarly and legal writing when referring to the foundational norms of several subjects or jurisdictions.

Etymologically, peruslaki is a compound of perus- (basic, fundamental) and laki (law). Finnish expresses possession with suffixes attached to the noun; for third-person plural possessors the form becomes peruslakiensa, indicating that the basic laws belong to them. In many contexts, the formal term for a constitution is perustuslaki, but peruslaki can be used to describe basic legal norms in a broader or historical sense.

Usage notes: Peruslakiensa appears in neutral, descriptive texts, especially in comparative discussions about multiple jurisdictions or historical developments of legal frameworks. It is appropriate when the subject is the set of basic laws belonging to several entities, rather than a single entity’s constitution.

See also: perustuslaki, lainsäädäntö, constitutional law. The term underscores a distinction between general notions of basic law and the formal constitutional framework often denoted by perustuslaki in Finnish.