lacy'inda lujvo

x1 is trustworthy to x2 to bring about/ensure/maintain x3

See lacri, inda, krilacri

In notes:

kraice
x1 is loyal / faithful to x2 (person, institution, or custom)
zevlyjvo
x1 is a zi'evla-based lujvo meaning x2, with arguments x3 from tanru/compound-phrase x4