I typed Rick Nelson into Websters search engine and here's what came back-
Main Entry: gen·tle·man
Pronunciation: \ˈjen-təl-mən, ˈje-nəl-, in rapid speech also ˈjen-tə-mən, ˈje-nə-\
Function: noun
Usage: often attributive
Etymology: Middle English gentilman
Date: 12th century
1 a: a man of noble or gentle birth b: a man belonging to the landed gentry c (1): a man who combines gentle birth or rank with chivalrous qualities (2): a man whose conduct conforms to a high standard of propriety or correct behavior
Happy B-Day amigo!