täiendama

Täiendama is an Estonian verb meaning to supplement, to add to something in order to make it more complete, up-to-date, or improved. It is transitive and used when one thing is added to another, such as information, data, features, or a plan. The root täiend denotes an addition or supplement, and related forms include täiendamine (supplementation) and täiendus (addition).

The verb is regular and follows standard conjugation for -da verbs. In the present tense the forms are täiendan, täiendad, täiendab, täiendame, täiendate, täiendavad. The past tense forms are formed according to the regular pattern of Estonian verbs (for example, täiendasin).

Common usage includes updating texts, databases, or programmes, and expanding arguments or proposals. Examples:

- Me täiendame aruannet uute andmetega.

- Ta täiendab õpperaamatut lisainfoga.

- Projekti plaan tuleb täiendada vastavalt vajadustele.

Etymology: the verb is derived from täiend (an addition) with the -ama suffix forming an infinitive. In Estonian, täiendama conveys a neutral, practical sense of adding material to improve or complete something.

See also: täiendamine (supplementation), täiendus (addition), täiendada (to upgrade or enhance). The term is common in education, research, administration, and media when discussing updates or enhancements.