/ˈvɛl.əm.li/
adverb · etym: anglo-noemic · vellum (fine prepared skin, fine paper) + -ly
in the manner of fine paper.
a sentence written vellumly accepts a single careful stroke and rejects every revision. an apology delivered vellumly is brief and well-pressed; one cannot shout vellumly. cloth can be vellumly; a fold of a letter, certainly. compare the older sense, in which the word described monastic copying in the library, and the paginate measure of days.
the vellumly object is not delicate. it is finished. one could press a hand against it without harming it; the hand would, however, leave a small record. consult glossarial for the related precision of the catalogued word, and plinthly for the vellumly thing's near cousin in posture.
in a sentence: "he refused vellumly; one would not have asked again."
see also · glossarial paginate plinthly library letter