वृध्

वृधुँ = व ऋ ध उ चंद्र बिंदी
person superior carry उ as क्रियापद विभक्ति pull = means to grow
Speech superior carry उ as क्रियापद विभक्ति outside = eans to speak

धातु अर्थ
circular reference to itself
at भाषा = stand upto pointed upto = instructing = speaking
at भाषा = steady/ground upto top upto

रूढ अर्थ
to increase, grow prosper
speak