peculiarly
UK: /pɪˈkjuːliəli/ | US: /pɪˈkjuːliərli/
adv. in a manner that is strange or unusual
adv. in a way that is distinctive or specific to a particular person, place, or thing
The word "peculiarly" derives from the Latin peculiaris, meaning "of one's own property," from peculium (private property, originally livestock wealth). Over time, "peculiar" evolved to mean "distinctive" or "unusual," as something belonging exclusively to an individual often seemed odd to others. The suffix "-ly" transforms the adjective into an adverb, emphasizing the manner of being distinctive or strange.
She smiled peculiarly, as if hiding a secret.
The machine functioned peculiarly after the software update.
His handwriting is peculiarly neat for a child.
The dish was peculiarly flavored with exotic spices.
The old house was peculiarly silent at night.