Where does “ధ్యాననిష్ఠ” come from?

ధ్యాననిష్ఠ (Telugu) comes from Sanskrit ध्यान, from Sanskrit ध्यै, from Proto-Indo-European dʰeyh₂- — mind, thought.

ధ్యాననిష్ఠ (Telugu): absorption in meditation or contemplation

Definitions

ధ్యాననిష్ఠ traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Sanskrit	ध्यान	meditation, thought, reflection, profound and...
2	Sanskrit	ध्यै	to contemplate, meditate, think of
3	Proto-Indo-European	dʰeyh₂-	mind, thought

Step	Language	Word	Meaning
1	Telugu	నిష్ఠ	Fixed affection or attention; devotedness;...