The act of crawling over or spreading across a surface by crawling.
Present participle of 'becrawl,' using the '-ing' suffix to form a gerund or continuous action form that describes ongoing creeping movement.
The '-ing' form turns 'becrawl' into a noun you can use in sentences like 'the becrawling of insects showed the hive was active.' Medieval naturalists used gerunds like this to describe processes in nature before we had modern scientific terminology.
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