SURREPTITIOUS, SURREPTITIOUSLY
ADJECTIVES
1610 ► SUBREPTITIOUS clandestine, surreptitious
1611 ► SUBREPTIVE surreptitious
L19.. ► Q.T. surreptitious → sl.
20C.. ► SIDE surreptitious, clandestine → sl.
1990 ► OFF THE BACK surreptitious, on the side → sl.
ADVERBS
1382 ► UNDER VEIL surreptitiously → obs.
1884 ► ON THE Q.T. surreptitiously, on the quiet; secretly → sl.
1898 ► UNDER BANISTY secretly, surreptitiously → Eng. dial. (Bk.)
L19.. ► ON THE STRICT Q.T. surreptitiously, on the quiet → sl.
VERBS
L17.. ► PALM to pass over, or receive, anything in a surreptitious manner → sl.
1920 ► OIL to move quietly, stealthily, or in an underhand, surreptitious manner → sl.
Lexicophilia 