TACITURNLY
mutely, wordlessly, silently, taciturnly
(adverb) without speaking; โhe sat mutely next to herโ
Source: WordNet® 3.1
Etymology
Adverb
taciturnly (comparative more taciturnly, superlative most taciturnly)
quietly; not in a manner inclined to speaking.
Source: Wiktionary
TACITURN
Tac"i*turn, a. Etym: [L. taciturnus: cf. F. taciturne. See Tacit.]
Definition: Habitually silent; not given to converse; not apt to talk or
speak.
– Tac"i*turn*ly, adv.
Syn.
– Silent; reserved. Taciturn, Silent. Silent has reference to the
act; taciturn, to the habit. A man may be silent from circumstances;
he is taciturn from disposition. The loquacious man is at times
silent; one who is taciturn may now and then make an effort at
conversation.
Source: Webster’s Unabridged Dictionary 1913 Edition