buti
good
good
pinakamabuti
best
bumuti
to get better, improve
butihin
gentle, charming (applied to women)
kabutihan
goodness, benefit
Buti nga. 
Serves you right. 
makabuti
to benefit
mapabuti
 to improve
pagbutihin
to improve on
nasa mabuting kamay
in good hands 
To say 'Good morning' in Tagalog, use Magandang umaga.