குருத்து (Tamil) comes from Tamil குரு, from Sanskrit गुरु, from Proto-Indo-Aryan gr̥Húṣ, from Proto-Indo-Iranian gr̥Húš, from Proto-Indo-European gʷréh₂us, from Proto-Indo-European -us — Forms adjectives from Caland system roots.
குருத்து (Tamil): sprout, tender leaf, shoot