indeclinable arising from that.

(~ā and -ikā)n. rising (early); exerting oneself, active.

…˚ñāya: ñatvā as uṭṭhāya: ṭhatvā; so explained by P. Commentators whereas modern interpreters have taken it as instr. of paññā

…henceforth DN.i.93 taduṭṭhāya Dhp-a.iii.344; tadūpiya (cp. Trenckner, Notes 77, 78 = tadopya (see discussion under opeti), but cp….

…& uṭṭhāya Snp.401
inf uṭṭhātuṃ Ja.i.187.
■ Note. When uṭṭh˚ follows a word ending in a vowel…

adjective = uṭṭhāyaka Ja.v.448; f. -ikā AN.iii.38 (variant reading ˚āyikā), AN.iv.266 sq.

for uṭṭhāyaka after analogy of gāhaka…

…& uṭṭhāya Snp.401
inf uṭṭhātuṃ Ja.i.187.
■ Note. When uṭṭh˚ follows a word ending in a vowel…

…variant reading uṭṭhāhikā)

adj. formation fr. uṭṭhāya, ger. of uṭṭhahati

adjective getting up DN.i.60 (pubb˚ + pacchā-nipātin rising early & lying down late).

adj. form. fr. uṭṭhāya, cp. uṭṭhāyaka