Someone who is very skilled at persuasion and has a way with words

जिसे बोलने की कला में महारत हो

English Usage: He convinced the whole audience with his silver tongue.

Hindi Usage: उसने अपनी वाक्पटुता से पूरी सभा को मना लिया।

relating to Demosthenes or his oratory style

डेमोस्थनीस या उसके वाक्पटुता शैली से संबंधित

English Usage: Her speech was so demosthenic that it captivated the audience.

Hindi Usage: उसका भाषण इतना डेमोस्थनीक था कि उसने दर्शकों को मंत्रमुग्ध कर दिया।