If a tbl(7) layout contains a 'w' (minimum width) modifier for a

If a tbl(7) layout contains a 'w' (minimum width) modifier for a
given column, that column contains no literal or numeric cell of
larger width, and all text block cells in that column can be line
wrapped to fit into that minimum width, groff does not increase
that column width beyond the specified minimum: so do the same.