sustaining

To maintain, or keep in existence.

“The city came under sustained attack by enemy forces.”

To provide for or nourish.

“provisions to sustain an army”

To encourage or sanction (something).

To experience or suffer (an injury, etc.).

“The building sustained major damage in the earthquake.”

To confirm, prove, or corroborate; to uphold.

“to sustain a charge, an accusation, or a proposition”

To keep from falling; to bear; to uphold; to support.

“A foundation sustains the superstructure; an animal sustains a load; a rope sustains a weight.”

To aid, comfort, or relieve; to vindicate.

The process by which something is sustained or upheld.

That sustains, supports or provides sustenance.