laineiden

Laineiden is the genitive plural form of the Finnish noun laine, which means “wave.” It is a grammatical form used to show possession or relationship to multiple waves, roughly equivalent to “of the waves” or “the waves’” in English. The corresponding singular forms are laineen for the genitive singular and laine for the nominative.

Morphology and usage are typical of Finnish vowel-stem nouns. For laine, the nominative plural is laineet, while the genitive plural is laineiden. This form appears in sentences that reference many waves or the collective property of waves, rather than in everyday speech as a common noun.

In practice, laineiden appears in scientific, nautical, or descriptive contexts. Examples include phrases such as laineiden korkeus (the height of the waves), laineiden energia (the energy of the waves), and vaikutus laineiden tilaan (the effect on the waves’ state). In standalone, non-possessive positions, the nominative laineet or other cases are typically used.

Related terms include laine (the base noun “wave”) and aalto, another Finnish word for a wave, often used for physical waves or ripples. The choice between laine and aalto can reflect nuance in meaning or domain, but laineiden specifically marks possession or association with multiple waves.

See also: laine, aalto.