Words about sleeping
Pop quiz, hot shot: name the common modern Japanese verb X which had an older root/related form Y such that:
X : Y :: deru (出る) : idu (出づ)
Give up? neru. Both idu and inu were shimo-2-dan verbs, meaning they conjugated like this:
ide, ide, idu, iduru, idure, ideyo
ine, ine, inu, inuru, inure, ineyo
And, today, both neru and deru are vowel-stem verbs that conjugate like... well, like in the table I just linked to.
The difference is that the dictionaries are quite happy calling deru a contraction of idu, but the relationship between neru and inu isn't quite so clear cut. It seems that the ne is a root meaning "lie down"* and i is a separate root meaning, specifically, "sleep". So it's quite possible that the words started out independent and became synonymous/merged later on, rather than having a clear ancestor/descendent relationship.
i lives on in only one word that I know of: igitanai, describing someone who sleeps too much, and composed of i + kitanai (in this case, "~ in an unreasonable way, ~ like a fool"). I thought maybe inemuri was another example, but apparently it used to be winemuri, so probably not. Anyone know any others?
* nemuru, the other common Japanese word for sleep, was originally neburu, so it might be from ne (lie down) + buru (act in a certain way).
IbaDaiRon:
Gyott, you linked to that?! Maybe the Part 2 chart (?p=233) would be a better illustration of the "conjugation"?
i seems to have been a free-standing noun when not bound in compounds like asa.i 朝寝 (...which I'll probably be indulging in later this). Maybe inu developed from a lil sompin-sompin like i wo nu 寝を寝 (from Iwanami)?
she slept a sleep of sediment, of stratification of dreams