dog lover
Refers to a person who loves dogs, often implying a strong affection or hobbyist interest.
彼は大の愛犬家で、家に三匹の犬がいる。
He is a great dog lover and has three dogs at home.
Compound of 愛 (love) + 犬 (dog) + 家 (person). The exact historical derivation is uncertain, but the word follows a common pattern for describing enthusiasts.