tviṣ, dviṣ, çliṣ, tuṣ, duṣ, puṣ, çuṣ], while kṛṣ has both forms (krakṣya and karṣiṣya); — in s, vas shine, vas clothe [also ghas], while vas dwell has both forms; — in h, mih, duh, druh [also nah, dih, lih], while dah, vah, sah, and ruh have both forms.
e. In the older language, a majority (about five ninths) of simple roots add the sya without auxiliary i; of the futures occurring in the later language only, nearly three quarters have the i, this being generally taken by any root of late origin and derivative character — as it is also uniformly taken in secondary conjugation (1019, 1036, 1050, 1068).
936. As the root is strengthened to form the stem of this future, so, of a root that has a stronger and a weaker form, the stronger form is used: thus, from √bandh or badh bind, bhantsya or bandhiṣya.
a. By an irregular strengthening, nan̄kṣya (beside naçiṣya) is made from √naç be lost, and man̄kṣya (beside majjiṣya) from √majj sink.
b. But a few roots make future-stems in the later language without strengthening: thus, likhiṣya, miliṣya (also TS.), vijiṣya (also vejiṣya), siṣya (√sā or si), sūṣya (939 b), sphuṭiṣya; and √vyadh makes vetsya from the weaker form vidh.
c. The ÇB. has once the monstrous form açnuviṣyāmahe, made upon the present-stem açnu (697) of √aç attain. And the later language makes sīdiṣya and jahiṣya from the present-stems of √sad and √hā. Compare further hvayiṣya etc., 935 c. Also khyāyiṣya from √khyā (beside khyāsya) appears to be of similar character.
d. A number of roots with medial ṛ strengthen it to ra (241): thus, krakṣya, trapaya, drapaya, drakṣya, mrakṣya (beside mārkṣya), sprakṣya, srakṣya, srapsya (beside sarpsya), and mradiṣya (beside mardiṣya); and √kḷp forms klapsya (beside kalpiṣya).
e. The root grah (also its doublet glah) takes ī instead of i, as it does also in the aorist and elsewhere.
937. This future is comparatively rare in the oldest language — in part, apparently, because the uses of a future are to a large extent answered by subjunctive forms — but becomes more and more common later. Thus, the RV. has only seventeen occurrences of personal forms, from nine different roots (with participles from six additional roots); the AV. has fifty occurrences, from twenty-five roots (with participles from seven more); but the TS. has occurrences (personal forms and participles together) from over sixty roots; and forms from more than a hundred and fifty roots are quotable from the older texts.
938. Mode-forms of the future are of the utmost rarity. The only example in the older language is kariṣyā́s, 2d sing. subj. act., occurring once (or twice) in RV. (AB. has once notsyāvahāi, and GB. has eṣyāmahāi, taṅsyāmahāi, sthāsyāmahāi, but they are doubtless false read-