Wiktionary
adv. to a greater extent than anything else
Wikipedia
"Most of All" is the fifth and final single from Jody Watley's eponymous debut album.
"Most of All" is a B. J. Thomas single from the 1970 album, Most of All, on Scepter Records. The song, composed by Buddy Buie and J.R. Cobb ( Classics IV, Atlanta Rhythm Section), reached #2 on the Billboard Adult Contemporary singles chart, and #63 on the Billboard Hot 100, in the same year.
Usage examples of "most of all".
At the same time, their operations depended most of all on something other than the physical.
Russell had thoughtfully overheated it somewhat, but what Qati noted most of all was its obvious def ensibility, with a clear field of fire in all directions.
Nevertheless, devout conversation on spiritual things helpeth not a little to spiritual progress, most of all where those of kindred mind and spirit find their ground of fellowship in God.
Lord, because Thou wast patient in Thy life, herein most of all fulfilling the commandment of Thy Father, it is well that I, miserable sinner, should patiently bear myself according to Thy will, and as long as Thou wilt have it so, should bear about with me for my salvation, the burden of this corruptible life.
She pleaded so hard, with that musical voice, with her evident helplessness, most of all with her wonderful eyes, that I quite abandoned any project I might have entertained to secure her arrest.
They welcomed the trials and laughed at the errors, and, most of all, simply savored the work.
They ran among the trees, they slipped and fell, they pushed each other, they played hide-and-seek and tag, but most of all they squinted at the sun until the tears ran down their faces.
In this most of all Thou hast showed me the sweetness of Thy charity, that when I was not, Thou madest me, and when I wandered far from Thee, Thou broughtest me back that I might serve Thee, and commandedst me to love Thee.