Seed:     cōn

Stem:     –cōn–

  ancōna   [S.st]

1: defensible.

Stem:     –cōnōn–

  macōnōn   [S.an.sg]

1: defender, guard.

Stem:     –īcōn–

  jīcōna   [S.sg]

1: retort, quick answer, comeback.