In a twisted, confused, or trapped manner; with things wound together.
From 'entangled' (past participle of entangle) plus '-ly' (adverbial suffix). The '-ly' suffix converts adjectives to adverbs, a pattern dominant in English since Old English times.
Adverbs ending in '-ly' are so common that we barely notice them, but they're actually a relatively recent innovation—Old English relied more on inflections than suffixes to show how actions occurred.
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