Quietly, gently; in a small or low voice. Now rare.

With a soft or subdued voice or utterance; in a low or gentle tone.

In a low voice, quietly. Cf. aloft, adv. 2c. Now rare (poetic after 15th cent.).

With a low voice or sound.

in mute: in an undertone. Obsolete. rare.

With a voice that does not pass the lips; in low tones spoken to oneself; not aloud.

Towards the inside or interior (of a place, space, or material body). With an ‘inward’ tone, with muffled utterance, indistinctly: cf. inward, adj.…

In a subdued or low voice. Of speech.