The easiest way, well, the way I would do it would be to copy the list to Calc and paste it at A1.
In Calc, cell B1 enter the formula
=IF(MOD(ROW();2);A1;""), in Cell C1 enter the formula
=IF(MOD(ROW();2);A2;""). Drag the two formulas down to the end of the list, or copy and paste.
Copy all the cells in columns B & C containing the formulas and press Edit > Paste Special Paste unformatted text.
In the menu press Data > AutoFilter (say no if it wants first row as column headers). Click on the filter arrow by one of the columns and untick the box Empty Cells, click OK.
With the cells still selected copy and paste into Writer as unformatted text to get just tabs between the words and convert to table if needed. Cheers, Al