ENVELOPE
NOUNS
1672 ► LETTER-CASE an envelope → obs.
1742 ► LETTER-COVER an envelope → obs.
1847 ► ENDILOPE an envelope → Eng. dial.
1871 ► BACKING the address or return address on an envelope or letter; the act of writing an address → Sc. & Amer. dial.
1989 ► BOLTOP salutation on an envelope, “Better On Lips Than On Paper” → sl.
NOUNS, PERSON
1982 ► TRAPPER a person who can open envelopes and reseal them without a trace → US sl.
PHRASES
1910 ► S.W.A.L.C.A.K.W.S. Sealed With A Lick Cos A Kiss Won’t Stick; usually found on the back of envelopes
1910 ► S.W.A.L.K. Sealed With A Loving Kiss; usually found on the back of envelopes
1910 ► S.W.A.N.K. Sealed With A Nice Kiss; usually found on the back of envelopes
1925 ► SWAK salutation on an envelope, “Sealed With A Kiss” → sl., orig. services’ usage
1948 ► SWALK salutation on an envelope, “Sealed With A Loving Kiss” → sl., orig. services’ usage
1961 ► NORWICH salutation on an envelope, “(K)nickers Off Ready When I Come Home” → sl.
1984 ► HOLLAND written on an envelope, or at the foot of a lover’s letter as lovers’ code for ‘Here Our Love Lies And Never Dies, or Hope Our Love Lasts And Never Dies → UK sl.
VERBS
1859 ► BACK to address an envelope or letter → Sc. & Amer. Amer. dial.
Lexicophilia 