kellertävimmän
The word "kellertävimmän" is the genitive singular form of the Finnish adjective "kellertävä," meaning "yellowish." In Finnish grammar, the genitive case is used to indicate possession, origin, or to modify another noun. Therefore, "kellertävimmän" translates to "of the most yellowish" or "the most yellowish's." This form would appear in a sentence where it modifies a noun that is in a grammatical case that requires a genitive modifier. For example, it could describe a color, a substance, or even a feeling that possesses the quality of being the most yellowish.
The root of the word, "kellertävä," itself derives from "keltainen," the Finnish word for yellow. The suffix