2 synonym groups for Upkeep

ensuring the dependability of, preserving the trustworthiness of, upholding the reliability of, sustaining the consistency of, keeping the reliability of, safeguarding the dependability of, maintaining the trustworthiness of, securing the reliability of, retaining the dependability of, continuing the reliability of [x]

self-care, self-preservation, self-sustenance, self-support, self-reliance, self-sufficiency [x]