This sentence is about cats:

> こちらからも **執こく** しないで、そっと放任して置いてやれば、猫はいよいよ猫らしく美しくなって、無言の愛着を飼主に寄せて来るのである。

A number of other examples can be found
[here](http://yourei.jp/%E5%9F%B7%E3%81%93%E3%81%8F).
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words
What does the word [執こく]{しつこく} mean?
しつこく is an adverbial form of the adjective しつこい meaning "persistent",
"stubborn", "obstinate".

An alternative spelling is used in the examples given. See for example [Weblio
for しつこい](http://www.weblio.jp/content/%E3%81%97%E3%81%A4%E3%81%93%E3%81%84):

> しつ こ・い ［3］  
>  （ 形 ） ［文］ ク しつこ・し  
>  **〔「執拗い」とも書く〕**
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2016-12-31T00:53:09.567
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In this context "執こくしない" has the opposite meaning of "(そっと)放任して置いてやる（放任して置く）."

"執こくする" in this context is "taking too much care of a cat too much."

I think this phrase is also sometimes used for a girlfriend or boyfriend in
reference to someone who is clingy.
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2016-12-31T01:56:50.220
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