in all one's heart = with all one's heart at phrases 1j(a). Chiefly in biblical contexts. Now rare.

of heart (also of all one's heart): with all one's heart, from the heart; sincerely, earnestly. Cf. in all one's heart at phrases 1f(b). Obsolete.

with (also †mid) all one's heart (also with (also †mid) one's whole heart, †with one's heart): with the greatest sincerity, earnestness, or devotion…

with (also †mid) all one's heart (also with (also †mid) one's whole heart, †with one's heart): with the greatest sincerity, earnestness, or devotion…

In a heartfelt manner; with expression of real feeling; cordially; earnestly, sincerely; thoroughly; = heartily, adv. 1.

Earnestly; intensely, extremely. Obsolete.

With reference to other feelings than love or affection. From the heart, heartily, earnestly. Obsolete.

In a heartfelt manner; with full or unrestrained exercise of real feeling; sincerely, earnestly; fervently. Formerly also: with goodwill; cordially.

with (also †mid) all one's heart (also with (also †mid) one's whole heart, †with one's heart): with the greatest sincerity, earnestness, or devotion…

Assuredly, in truth. Obsolete.

= affectionately, adv.; earnestly, cordially, kindly. Cf. affectuously, adv.

With earnest feeling or desire; earnestly, ardently, eagerly. Obsolete.

With eager desire, earnestly; = affectionately, adv. 1. Obsolete.

Of expression, thought: vehemently, strongly; earnestly, eagerly. Obsolete.

from (also fro) one's heart: from the depths of one's soul or being; with the sincerest or deepest feeling. Also from the heart.

With all one's heart; wholeheartedly. Also: thoroughly (in later use chiefly as an ironic intensifier).

very heartily.

In an earnest manner.

= heartily, adv. In later use regional or nonstandard.

With true intent; intentionally, sincerely, earnestly. Obsolete.

Heartily; with gusto.

Earnestly, sincerely, fervently.