jednokrotnym
Jednokrotnym is the instrumental form of the Polish adjective jednokrotny. The basic meaning of jednokrotny is “occurring once” or “one-time,” used to describe events, actions, or occurrences that happen a single time rather than repeatedly. In everyday language, the more common term for a one-time use is jednorazowy, but jednokrotny appears in more formal or technical contexts, especially when contrasting single occurrences with multiple ones.
Etymology and related forms: the adjective is built from the numeral jeden (one) and the suffix -krotny,
Usage: jednokrotny is primarily found in formal, technical, or descriptive prose, including legal, statistical, or linguistic