Jawaharlal Nehru was an Indian nationalist leader and statesman who became the first prime minister of independent India in 1947. Born in a Kashmiri Pandit family, Nehru was educated in England as a lawyer. Let’s look at the etymology of his name.
Hindi-Urdu /jawāhar/ जवाहर = is from Arabic word, جَوهَر (jawhar) which in turn is from Persian گَوهَر ( gawhar). They all mean jewel / precious stone.
Hindi-Urdu /lāl/ लाल (dear/ darling/ dear son) is from Sanskrit /lālya/ लाल्य via लालनीय /lālanīya/ (to be caressed or fondled or indulged).
Nehru नेहरु is derived from Arabic / Persian نهر (nahr) = Hindi-Urdu नहर (nehar) = canal / brook / river (one of Nehru’s ancestors lived near a canal in Delhi.)