דָּג dâg (H1709)
a fish (often used collectively)
1) fish
or (fully) דָּאג; (Nehemiah 13:16), from דָּגָה (H1711); a fish (as prolific); or perhaps rather from דָּאַג (H1672) (as timid); but still better from דָּאַג (H1672) (in the sense of squirming, i.e. moving by the vibratory action of the tail);