uppruni
nafnorðkarlkynupp-runi
a, m. [renna], an ‘up-running,’ growth, origin, Barl. 133, Sks. 136 new Ed., passim in mod. usage.
2. the growing age, youth, Glúm. 335, Fms. xi. 8, 90, Hkr. iii. 175, Þiðr. 127, Trist. 1. uppruna-ligr (uppruna-liga, adv.), adj. original.