Freely — Either without price, for fish was very plentiful, and fishing was there free, or with a very small price. And this is the more probable because the Egyptians might not taste of fish, nor of the leeks and onions, which they worshipped for Gods, and therefore the Israelites, might have them upon cheap terms.
Related Commentaries of Numbers 11:5
Numbers 11:5
5 We remember the fish, which we did eat in Egypt freely; the cucumbers, and the melons, and the leeks, and the onions, and the garlick: