Adverb taking the 'to' particle, Taru adjective
endlessly; continuously; (going) on and on
彼のスピーチは延々と続いた。His speech went on and on. Taru adjective, Adverb taking the 'to' particle
meandering; winding; sinuous; serpentine
Also written 延延【えんえん】、蜿蜒【えんえん】、蜿蜿【えんえん】