lend credence to

US /lend ˈkriː.dəns tuː/
UK /lend ˈkriː.dəns tuː/
"lend credence to" picture
1.

信憑性を与える, 裏付ける

to make something seem more believable or likely to be true

:
The new evidence lent credence to his alibi.
新しい証拠は彼の不在証明に信憑性を与えた
His calm demeanor lent credence to his claim of innocence.
彼の落ち着いた態度は無実の主張に信憑性を与えた