i-adjective
cold to the touch; chilly
Describes something that feels cold when touched, such as water, food, or skin. Casual, everyday word.
この水、冷やっこいね。
This water is cold, isn't it?
冷やっこいタオルで顔を拭いた。
I wiped my face with a chilly towel.
Standard kanji-kana spelling.
Variant spelling without や; less common but attested.
冷たい is the standard word for 'cold to the touch' and can also describe cold personalities. 冷やっこい is a more casual, dialectal variant used mainly for physical coldness.
Derived from 冷や (hiya, 'cold') + っこい (-kkoi, an adjective-forming suffix common in dialects). The suffix っこい adds a casual, colloquial tone.