I've always said "betel nut" rather than "betel" in English. Does just the single word "betel" sound odd for others?
That would certainly sound more usual to me. I also question whether one eats betel. Doesn't one just chew it like gum and then spit it out? I have always heard "she is chewing betel nut."
Betel is actually a leaf that grows on a vine. The areca nut is the nut!
you don't actually eat betel, do you? we've always heard/read "chewing" betel nut. Isn't it something you chew and spit out the juice, like some people here chew "chew"? (A special type of tobacco)
Betel is actually a betel leaf, a betel nut (from a different plant, a palm tree) and lime that you chew together.