tredubbla

Tredubbla is a Swedish verb meaning to multiply something by three, or to increase threefold, i.e., to triple. It is used when describing a threefold increase in quantity, size, value, or other measurable things.

Etymology and related forms: the word combines the prefix tri-, meaning three, with dubbla, meaning to double. This formation mirrors other Swedish verbs that describe proportional increases, such as dubbla (to double) and fyrdubbla (to quadruple). The adjective form is tredubbel, meaning threefold or triple.

Grammatical notes: the verb follows the regular conjugation pattern of Swedish -a verbs. Infinitive: tredubbla. Present: tredubblar. Past: tredubblade. Supine: tredubblat. Perfect tense is formed with har tredubblat. The passive present is tredubblas, and the passive past is tredubblades, as in Befolkningen tredubblas över tiden.

Usage: tredubbla is common in mathematics, economics, statistics, and everyday language to describe a threefold increase. It can refer to prices, profits, population, production, or any measurable quantity. In contexts where a threefold change is theoretical rather than realized, speakers may use conditional forms or hypothetical constructions.

Examples:

- Företaget planerar att tredubbla sin omsättning inom fem år.

- Befolkningen tredubblades under det första århundradet i regionen.

- Om priset tredubblas blir effekterna större än väntat.

See also: doubling, tripling, proportional growth.