S. hû² n. “hound (or ?heart)” (Category: Dog)
A noun appearing as N. hû “dog” in The Etymologies of the 1930s under the root ᴹ√KHUG “bark, bay” (Ety/KHUGAN). The same form hû appeared in rough notes on Words, Phrases and Passages from the Lord of the Rings from the late 1950s or early 1960s with a gloss that might be “hound” or might be “heart”, according to Christopher Gilson (PE17/86). This later hû form was derived from ✶khōgo, which makes me think “hound” is the more likely meaning given the primitive form’s resemblance to ᴹ√KHUG.
Reference ✧ PE17/86 ✧ hû “hound (or ?heart)”
Reference ✧ Ety/KHUGAN ✧ “dog”
|ᴹ√KHUG > hû||[kʰugo] > [xugo] > [xuɣo] > [xuɣ] > [xūɣ] > [xū] > [hū]||✧ Ety/KHUGAN|
References ✧ GL/27, 49