五字母詞根: juven
juven= 年輕
juvenile
juven
juvenile ˈcourt
juvenile deˈlinquency
juvenility
juvenescence
juvenescent
rejuvenate
五字母詞根:later
later=邊
lateral
unilateral
bilateral
trilateral
quadrilateral
multilateral
equilateral
五字母詞根: insul
insul=island島
insular
insulate
insulin
peninsula