j. The words in yu do not show in the Veda resolution into iu (except dhāsiús AV., once).
1179. ऊ ū. Stems in ऊ ū are very few, even as compared with those in ई ī (1156). They are for the most part feminines corresponding to masculines in u (344 b), with half-a-dozen more independent feminines (see 355 c).
a. To those already mentioned above are to be added karṣū́ pit, -calū (in puṁçcalū́), -janū (in prajanū́), çumbhū́.
1180. उक uka. With this suffix are made derivatives having the meaning and construction (271 g) of a present participle. The root is strengthened, and has the accent.
a. The derivatives in uka are hardly known in the Veda; but they become frequent in the Brāhmaṇas, of whose language they are a marked characteristic (about sixty different stems occur there); and they are found occasionally in the older language. In all probability, they are originally and properly obtained by adding the secondary suffix ka (1222) to a derivative in u; but they have gained fully the character of primary formations, and in only an instance or two is there found in actual use an u-word from which they should be made.
b. The root is only so far strengthened that the radical syllable is a heavy (79) one; and it has the accent, whether the derivative is made from a simple root or from one with prefix.
c. Examples, from the Brāhmaṇa language, are: vā́duka, nā́çuka, upakrā́muka, prapā́duka, upasthāyuka (258), vyāyuka, véduka, bhā́vuka, kṣódhuka, hā́ruka, várṣuka, samárdhuka, dáṅçuka, ālambuka, çikṣuka (GB.: RV. has çikṣú), pramā́yuka (ṢB. has pramāyu).
d. Exceptions as regards root-form are: nirmā́rguka (with vṛddhi-strengthening, as is usual with this root: 627), -kasuka, ṛdhnuka (from a tense-stem; beside árdhuka). AV. accents sáṁkasuka (ÇB. has saṁkásuka) and víkasuka; RV. has sānuká (which is its only example of the formation, if it be one; AV. has also ghā́tuka from √han, and ápramāyuka); vasuká (TS. et al.) is probably of another character. Açanāyuka (PB. et al.) is the only example noticed from a conjugation-stem.
e. Of later occurrence are a few words whose relation to the others is more or less doubtful: kārmuka and dhārmuka, tsāruka, tarkuka, nānduka, pādukā, pecuka, bhikṣuka, lāṣuka, seduka, hiṇḍuka, hreṣuka. Of these, only lāṣuka appears like a true continuer of the formation; several are pretty clearly secondary derivatives.
f. A formation in ūka (a suffix of like origin, perhaps, with uka) may be mentioned here: namely, indhūka, majjūka, and, from reduplicated-