G4115–πλατύνω–platunō

But all their works they do to be seen by men. They make their phylacteries broad, enlarge the fringes of their garments,

πλατύνουσιν platunousin “They broaden”

Our mouth is open to you, Corinthians. Our heart is enlarged.

πεπλάτυνται· peplatuntai “has been expanded;”

Now in return, I speak as to my children, you also be open wide.

πλατύνθητε platunthēte “do open [yourselves]”