Kasdienio

Kasdienio is the masculine genitive singular form of the Lithuanian adjective kasdieninis, meaning daily or everyday. This form is used when the adjective modifies a masculine noun in the genitive case, indicating a relation to daily life or routine. It appears in written and spoken Lithuanian, particularly in descriptions of habits, routines, or phenomena associated with everyday life.

In Lithuanian grammar, adjectives agree with the nouns they describe in gender, number, and case. For masculine singular nouns in the genitive case, the ending -io is common, as in kasdienio. Examples: kasdienio gyvenimo ritmas (the rhythm of daily life), kasdienio elgesio taisyklės (rules of daily conduct), kasdienio vartojimo įpročiai (habits of daily use).

Kasdienio is not a standalone independent word; it is a grammatical form of kasdieninis. The base adjective kasdieninis conveys the sense of daily or everyday, and kasdienio appears when a noun in genitive requires a possessive or descriptive relation.