チャック

Japanese

Pronunciation

• (Tokyo) チャ​ック [cháꜜkkù] (Atamadaka – [1])
• IPA^(key): [t͡ɕa̠k̚kɯ̟ᵝ]

Etymology 1

チャック (chakku): three different kinds of zippers.

Derived from the chaku portion of the term 巾(きん)着(ちゃく) (kinchaku, “kinchaku”), possibly in reference to an early use of zippers in Japan as closures for kinchaku. Originally a trademark, sold in Japan under this trademark from around 1927.

First cited to 1946, but considering the history, likely in use a couple decades earlier.

See also 線ファスナー on the Japanese Wikipedia.Wikipedia ^ja

While unrelated to チャック (chakku) in reference to mechanical devices, both share an underlying sense of "fastening".

Noun

チャック • (chakku) 

1. [from 1946, possibly from 1927] a zipper, a zip fastener

   チャックのスライダー

   chakku no suraidā

   slider of a zipper

Synonyms

• ファスナー (fasunā, “fastener”, general reference, may include other fasteners)
• 線(せん)ファスナー (sen fasunā, “line fastener”, more specifically, not including other fasteners)
• ジッパー (jippā, “zipper”)
• ジップファスナー (jippu fasunā, “zip fastener”)

Etymology 2

チャック (chakku): a selection of drill chucks.

Borrowing from English chuck.

First cited to 1948.

While unrelated to チャック (chakku) in reference to zippers, both share an underlying sense of "fastening".

Noun

チャック • (chakku) 

1. [from 1948] a chuck: a kind of clamp on a drill, lathe, or other spinning mechanical device that holds an object in place, such as a bit or other tool, or the object to be worked on

   Synonym: チャック装置 (chakku sōchi, literally “chuck device”)

Verb

チャックする • (chakku suru) suru (stem チャックし (chakkusuru shi), past チャックした (chakkusuru shita))

1. [after 1948] to chuck: to fasten an object into place using a chuck

Conjugation

Conjugation of "チャックする" (See Appendix:Japanese verbs.)

Katsuyōkei ("stem forms")
Mizenkei ("imperfective")	チャックし	chakku shi
Ren’yōkei ("continuative")	チャックし	chakku shi
Shūshikei ("terminal")	チャックする	chakku suru
Rentaikei ("attributive")	チャックする	chakku suru
Kateikei ("hypothetical")	チャックすれ	chakku sure
Meireikei ("imperative")	チャックせよ¹ チャックしろ²	chakku seyo¹ chakku shiro²
Key constructions
Passive	チャックされる	chakku sareru
Causative	チャックさせる チャックさす	chakku saseru chakku sasu
Potential	チャックできる	chakku dekiru
Volitional	チャックしよう	chakku shiyō
Negative	チャックしない	chakku shinai
Negative continuative	チャックせず	chakku sezu
Formal	チャックします	chakku shimasu
Perfective	チャックした	chakku shita
Conjunctive	チャックして	chakku shite
Hypothetical conditional	チャックすれば	chakku sureba
¹ Written imperative ² Spoken imperative