What do HA, INGA, LIMA, PET, and PUMP have in common?

Feel free to add the kitchen SINK, if that helps!

Probably not the sought after answer, but each "word" can have a word appended to create a new word:

HA+BIT (the cutting edge or part of a tool) =
HABIT (manner of conducting oneself)

INGA+TE (variant of ti, sol-fa syllable) =
INGATE (waste metal left in a mold's channel)

LIMA+CINE (motion picture) =
LIMACINE (of or resembling a slug)

PET+TED (to loosen or spread so as to dry) =
PETTED (stroked or gently caressed)

PUMP+KIN (a person's relatives) =
PUMPKIN (a large round fruit with thick orange pulpy flesh)

SINK+AGE (to grow old) =
SINKAGE (a depression; a sunken area)