抛る[horu] to throw
抛棄[houki] abandonment
抛物線[houbutsusen] parabola
抛擲[houteki] abandoning

抛入れ[nageire] nageire (casual or nature-imitating style of Japanese floral arrangement)
抛つ[nageutsu] to abandon
抛物面[houbutsumen] parabolic surface

棄却[kikyaku] rejection
棄権[kiken] abstaining from voting
棄権者[kikensha] non-voter
棄言葉[sutekotoba] sharp parting remark
棄死[kishi] execution by decapitation, followed by public display of the body (form of punishment in ancient China)

棄世[kisei] death
棄背[kihai] giving up and turning back
棄約[kiyaku] breaking a promise
棄老[kirou] old person thrown away in the mountains
棄捐[kien] donation