From Middle English capper; equivalent to cap + -er.
Meanings
A device or person that applies caps, as to bullets or bottles.
A person that makes or sells caps.
A finale; something that is conclusively better, or "caps it all off".
The real capper is when St. John starts fawning over Hugh Hefner, host of the finest Super Bowl party known to man, musing: “The question isn’t whether Hef is the hippest octogenarian on the planet. 2009 February 1, Joe Queenan, “Super Bowl Suits”, in New York Times:
And the capper of it all was, Stacy flew back to Memphis to see me for a day and try to settle our divorce with a one-on-one meeting. 2008, Jerry 'The King' Lawler, It's Good To Be The King...: Sometimes:
(US, dated, slang) A by-bidder; a decoy for gamblers.
ru коне́ц (A finale) · fi hattumaakari (A person that makes or sells caps) · fi kapseloimiskone (A device or person that applies caps, as to bullets or bottles) · fi huippukohta (A finale) · ota بوركجی (A person that makes or sells caps) · de Hutmacher (A person that makes or sells caps) · fi hatuntekijä (A person that makes or sells caps) · cs čepičář (A person that makes or sells caps)
Etymology tree
substratebor.?
Proto-Indo-European *kap-?
Proto-Indo-European *kap-
Proto-Indo-European *káput
Proto-Italic *kaput
Latin caput
Proto-Indo-European *-lós
Proto-Indo-European *-elós
Proto-Italic *-elos
Latin -ulum
Latin capitulum
Proto-Indo-European *h₂el-
Proto-Indo-European *-is
Proto-Indo-European *h₂élisder.?
Proto-Italic *-ālis
Latin -ālis
Latin -āris
Latin -āre
Latin capitulāre?
Late Latin cappabor.
Proto-West Germanic *kappā
Proto-West Germanic *kappijā
Old English cæppe
Middle English cappe
English cap
Proto-Indo-European *-yósder.
Proto-Italic *-āzios
Latin -āriusnom.
Latin -āriusbor.
Proto-Germanic *-ārijaz
Proto-West Germanic *-ārī
Old English -ere
Middle English -ere
English -er
English capper
From cap + -er.
Meanings
(slang) A person who caps i.e. is inclined to untruth, a fibber.