Tuletisega

Tuletisega is the instrumental form of the Estonian noun tuletis, meaning derivative. The base noun tuletis can refer to a derivative in mathematics, a chemical derivative, or more generally a by-product or offshoot derived from something else. The suffix -ga marks the instrumental/comitative case, so tuletisega translates roughly as “with a derivative” or “containing a derivative.”

In technical and scientific contexts tuletisega is used to describe objects, substances, or concepts that are derivatives or derived from another substance or source. For example, a compound described as a tuletisega ühend would be a derivative compound, while a description of materials might refer to properties of tuletisega tooted (derivative-based products). In mathematics, the more common word for the rate of change is tuletis; the form tuletisega may appear in phrases that specify something done with or by means of a derivative, though more typical phrasing is used to denote differentiability or the derivative itself.

Etymology and grammar: tuletis comes from Estonian, and the form tuletisega is produced by adding the instrumental suffix -ga to the genitive singular tuletise. This form is purely grammatical and does not create a new lexical meaning separate from tuletis; its function is to express “with a derivative” in sentences.

See also: tuletis (matemaatika), tuletis (keemia).