As a prefix, pala- may connote something done habitually.
palainom
habitual drinker
habitual drinker
palatawa
has the habit of laughing all the time
palaisip
always thinking
Palangiti ang mga Pinoy.
Filipinos are always smiling.
Palabigay ang nanay nila.
Their mother is a giver.
There are many other meanings for the Tagalog word pala.
pala
shovel
shovel
palahin ang lupa
plow the ground
= break up the soil