tì
to do one's duty as a younger brother
友悌
yǒu tì
brotherly bond
孝悌
xiào tì
filial piety and fraternal duty
孝悌忠信
xiào tì zhōng xìn
piety to one's parents, respect to one's older brother, loyalty to one's monarch, faith to one's male friends
悌友
tì yǒu
to show brotherly love for friends
悌睦
tì mù
to live at peace as brothers
恺悌
kǎi tì
happy and easygoing