seme (seed): semina, semenze, seminare, semenzaio, seminatore, riseminare, seminazione, disseminare, seminatrice
For English:
wood: wooden, woodworker, woody, woodsman, woodland
earth: earthen, earthy, earthly, earthborn, earthward, earthquake, earthling
fish: fishing, fisherman, fishery, fishy, fishmonger, fishnet
well: welcome, wellmeaning, wellknit
war: warrior, warlike, warship, warhorse, war-whoop, warsong, war-cry
play: player, playful, playhouse, playmate
politic: politics, politician, political, polity, politically
hard: hardly, harden, hardness, hardship, hardy, hardihood, hardware