Where does “gro” come from?

gro (Norwegian Nynorsk) comes from Old Norse Gróa, from Proto-Germanic grōaną, from Proto-Indo-European ǵʰreh₁- — to become green, grow; to grow; to green, to grow.

gro (Norwegian Nynorsk): to grow; to sprout, germinate; to heal

Definitions

  1. to grow; to sprout, germinate; to heal

Ancestry of “gro”, step by step

gro traces back through two separate lines of ancestry.

via Old Norse Gróa

StepLanguageWordMeaning
1Old NorseGróato grow (of plants)
2Proto-Germanicgrōanąto green; to grow
3Proto-Indo-Europeanǵʰreh₁-to become green, grow; to grow; to green, to grow

via Proto-West Germanic krodu

StepLanguageWordMeaning
1Proto-West Germanickrodutoad
2Proto-Indo-Europeanguredʰ-toad
Every word from Proto-Indo-European ǵʰreh₁- →Every word from Proto-Germanic grōaną →Every word from Old Norse Gróa →