testleriyle

Testleriyle is a Turkish grammatical form meaning “with their tests” or “by means of their tests.” It is formed by combining the root test with the plural suffix -ler to create testler (tests), adding the third-person plural possessive suffix -i to yield testleri (their tests), and finally attaching the instrumental suffix -yle to express “with.” The result is a prepositional phrase that marks the means or basis of an action.

In use, testleriyle functions as an instrumental phrase that specifies that something is done using the tests belonging to a third party. It is more specific than the generic testlerle (“with tests”) because it carries the possessive nuance of ownership or attribution to a group. The phrase commonly appears in narrative or analytic Turkish to foreground evidence or methods supplied by those tests.

Examples:

- Araştırmacılar testleriyle hipotezi doğruladılar. (The researchers confirmed the hypothesis with their tests.)

- Rapor, testleriyle ortaya konulan bulgulara dayanıyor. (The report relies on findings demonstrated by their tests.)

- Takım kararını testleriyle savundu. (The team defended the decision with their tests.)

Note that testleriyle is primarily a grammatical form rather than a widely used proper noun. It would not typically serve as a standalone name or title. See also Turkish grammar, possessive suffixes, and the instrumental suffix -yle.