If you meant to write "tidewater4" but it turned out misspelled, here are a few suggestions to fix it: 1) Tidewater40 - a logical numerical increment, 2) TidewaterFour - replacing the numeral with its spelled-out form, 3) Tidywater4 - a playful twist on the original spelling or 4) TidewaterIV - Roman numeral substitution for a sophisticated touch.