What is the meaning of Kosten?

definite singular of kost

to cost

take, require (time, effort, etc.)

plural of kost

to cost

to taste, try (sample the flavor of something)

inflection of kosen:

1. first/third-person plural preterite
2. first/third-person plural subjunctive II

first/third-person plural preterite

first/third-person plural subjunctive II

definite singular of kost

definite singular of kost

Source: wiktionary.org