wind-god, ásu life, mánu man, Manu; fem., íṣu (also masc.) arrow, síndhu (also masc.) river, tanū́ or tanú body; neut., kṣú food.
d. Derivatives from reduplicated roots are: cikitú, jágmu, jigyú, jijñu, siṣṇu, -tatnu (unless this is made with nu or tnu), didyu (?), dadru, yáyu or yayú and yíyu (with final ā lost), pípru (proper name), -dīdhayu; and títaü, babhrú, -raru (aráru), malimlú (?) have the aspect of being similar formations.
e. A few derivatives are made from roots with prefixes, with various accentuation: for example, upāyú on-coming, pramayú going to destruction, viklíndu a certain disease, abhī́çu rein (directer), sáṁvasu dwelling together.
f. From tense-stems, apparently, are made tanyú thundering, bhindú splitting, -vindu finding, and (with aoristic s) dákṣu and dhákṣu (all RV.).
g. Participial adjectives in ú from desiderative "roots" (stems with loss of their final a) are sufficiently numerous in the ancient language (RV. has more than a dozen of them, AV. not quite so many) to show that the formation was already a regular one, extensible at will; and later such adjectives may be made from every desiderative. Examples (older) are: ditsú, dipsú, cikitsú, titikṣú, pipīṣu, mumukṣú, iyakṣú, çiçlikṣú; with prefix, abhidipsú; with anomalous accent, didṛ́kṣu. These adjectives, both earlier and later, may take an object in the accusative (271 a).
h. A few similar adjectives are made in the older language from causatives: thus, dhārayú (persistent), bhājayú, bhāvayú, maṅhayú, mandayú, çramayú; and mṛgayú from the caus.-denom. mṛgáya.
i. Much more numerous, however, are such formations from the more proper denominatives, especially in the oldest language (RV. has toward eighty of them; AV. only a quarter as many, including six or eight which are not found in RV.; and they are still rarer in the Brāhmaṇas, and hardly met with later). In a majority of cases, personal verbal forms from the same denominative stem are in use: thus, for example, to aghāyú, arātīyú, ṛjūyú, caraṇyú, manasyú, saniṣyú, uruṣyú, saparyú; in others, only the present participle in yánt, or the abstract noun in yā́ (1149 d), or nothing at all. A few are made upon denominative stems from pronouns: thus, tvāyú (beside tvāyánt and tvāyā́), yuvayú or yuvāyú, asmayú, svayú, and the more anomalous ahaṁyú and kiṁyú. Especially where no other denominative forms accompany the adjective, this has often the aspect of being made directly from the noun with the suffix yu, either with a meaning of seeking or desiring, or with a more general adjective sense: thus, yavayú seeking grain, varāhayú boar-hunting, stanasyú desiring the breast; ūrṇāyú woolen, yuvanyú youthful, bhīmayú terrible. And so the "secondary suffix yu" wins a degree of standing and application as one forming derivative adjectives (as in ahaṁyú and kiṁyú, above, and doubtless some others, even of the RV. words). In three RV. cases, the final as of a noun-stem is even changed to o before it: namely, aṅhoyú, duvoyú (and duvoyā́; beside duvasyú), áskṛdhoyu.
