Sincerely
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): ( adv.) Honestly; unfeignedly; without dissimulation; as, to speak one's mind sincerely; to love virtue sincerely.
(2): ( adv.) In a sincere manner.
(3): ( adv.) Purely; without alloy.
King James Dictionary [2]
Since'Rely, adv. Honestly with real purity of heart without simulation or disguise to love virtue sincerely.