taru-adjective, adverb taking the 'to' particle
prosperity on the rise; fortune reaching its peak
A somewhat literary or formal expression describing one's luck or fortune as flourishing or at its height. Often used in set phrases or auspicious contexts.
His flourishing success is truly remarkable.
This year, my fortune has been on the rise, and good things keep happening one after another.
Standard kanji spelling using 隆々.
Variant spelling using 隆隆; less common but attested.
Compound of 運勢 (fortune, luck) and 隆々 (prosperous, flourishing). The exact historical derivation is uncertain, but the phrase is used in literary and formal contexts to describe rising fortune.