Freeza - His name is a pun on the English word for "freezer" (フリーザー). The spelling of he name comes from フリーザ, removing the elongated ザ. Due to pronunciation in both Japanese and English, it is not Freeze but Freeza.
Ginew - His name is a pun on the Japanese word for cow's milk (牛乳).
Recoom - His name is a pun on the English word for cream (クリーム). The spelling is an anagram of クリーム, リクーム, the リ is no longer elongated, removing the "rea" sound in cream. The ク is elongated.
Ghourd - His name is a pun on an alternate spelling on the English word for yogurt, "yoghourt" (ヨーグルト). The spelling of Ghourd removes ヨー, leaving グルト. However, ト is replaced with ド. For a spelling with the most commonly used spelling of yogurt, Gurd.
Jees - His name is a pun on the English word for cheese (チーズ).
Burtta - His name is a pun on the English word for butter (バター).
Saiyans
Kakarot - His name is a pun on the English word for carrot (キャロット).
Raditz - His name is a pun on the English word for radish (ラディッシュ).
Nappa - His name is taken from the term to refer to leafy vegetables (菜っ葉).
Vegeta - His name is a pun on the English word "vegetable" (ベジタブル).
Bardock - His name is anpun on the English word for "burdock" (バーダック).
Toma - His name is a pun on the word for tomato (トマト).
Pumbukin - His name is a pun on the English word for pumpkin (パンプキン).
Selipa - Her name is a pun on the word for parsley (パセリ).
Toteppo - His name is a pun on the English word for potato (ポテト).
Broly - His name is a pun on the word for broccoli (ブロッコリー).
Paragus - His name is a pun on the word for asparagus (アスパラガス).
Tarble - His name is a pun on the word for vegetables, table (ベジタブル).
Gine - Her name is a pun on the Japanese word for the Welsh onion or spring onion (葱).
Cabbe - His name is a pun on the English word for cabbage (キャベツ).
Renso - His name is a pun on the Japanese word for spinach (菠薐草).
Caulifla - Her name is a pun on the English word for cauliflower (カリフラワー).
Kale - Her name is taken directly form the English for kale (ケール).