kaksinkertaista

Kaksinkertaista is a Finnish verb form meaning “to double” or “to make twofold.” It is the third-person singular present tense form of the verb kaksinkertaistaa, which denotes the act of causing something to become twice as large or numerous.

Etymology and meaning: The word combines kaksi (two) and kerta (time or occurrence) with the causative suffix -istaa, yielding a verb that expresses transforming a quantity into two times its original amount. In use, kaksinkertaistaa conveys the idea of multiplication by two rather than simply increasing.

Usage: The form kaksinkertaista appears in sentences describing that something is doubled. It is common in mathematics, economics, business, and everyday language. Examples include: “Yritys kaksinkertisti myyntinsä” (The company doubled its sales) and “Hinta kaksinkertaistui vuodessa” (The price doubled in a year). Finnish also employs related nouns such as kaksinkertaistaminen or kaksinkertaistus to refer to the act of doubling.

Related forms: The adjective kaksinkertainen means twofold or double, used to describe a noun directly (for example, kaksinkertainen arvo). The broader verb family includes kaksinkertaistaa (to cause to become twofold) and its various inflected forms for different tenses, persons, and moods.

See also: Twofold and doubling concepts in Finnish, the noun forms for the act of doubling, and other verbs formed with the same causative -istaa suffix.