patro, father, bo'patro, father-in-law.
patrino, mother, bo'patrino, mother-in-law.

dis'—denotes division, separation, dissemination:

semi, to sow, dis'semi, to scatter.
ŝiri, to tear, dis'ŝiri, to tear in pieces.

ek'—denotes an action just begun, also short duration of an action:

kanti, to sing, ek'kanti, to begin to sing.
ridi, to laugh, ek'ridi, to burst out laughing.

ge'—denotes persons of both sexes taken together:

mastro, master, ge'mastroj, master and mistress.
edzo, husband, ge'edzoj, husband and wife.

mal'—denotes contraries, opposition of idea:

estimi, to esteem, mal'estimi, to despise.
varma, warm, mal'varma, cold.
amiko, friend, mal'amiko, enemy.

re'—denotes the repetition of an act; it corresponds to the English "re," back or again: