upomínkou

Upomínkou is the instrumental singular form of the Czech and Slovak noun upomínka, a word broadly used to denote a reminder, memento or keepsake. As a common noun, upomínka designates an object, message or gesture intended to preserve memory of an event, person or obligation. The term also covers administrative reminders such as payment notices or formal dunning letters in business contexts.

Grammatically, upomínka is a feminine noun; upomínkou is used when the noun functions in the instrumental case (for example, jako upomínkou — "as a memento" or s upomínkou — "with a reminder"). The word derives from verbs meaning to remind and is related to the root for memory and recollection found across Slavic languages.

In cultural and social usage, upomínka may refer to souvenirs, commemorative objects or memorial practices that help maintain personal or communal remembrance. In bureaucratic and commercial settings, upomínky are formal notices prompting action, often preceding further measures such as penalties or debt collection.

Comparable translations include English reminder, memento, keepsake and in specific legal contexts dunning notice. Related terms include památka (memorial, relic) and upomínat se/upomínat (to remind, to invoke a memory). The word appears frequently in both everyday speech and formal documentation.