nisīdati

to sit down, to be seated, to sit, to dwell Cnd.433; Ja.iii.392; Ja.vi.367; Pv.ii.9#3 (nisīdeyya Pot.); Pv-a.74. aor. nisīdi Vin.i.1; Ja.ii.153; Pv-a.5, Pv-a.23, Pv-a.44; 3rd pl. nisīdiṃsu (Ja.i.307) nisīdisuṃ (Mhvs.vii.40); ger. nisīditvā (Ja.ii.160; Pv-a.5 Pv-a.74), nisajja DN.ii.127) and nisīditvāna (Snp.1031); grd nisīditabba Vin.i.47. pp. nisinna (q.v.)
caus 2 nisīdāpeti [cp. Sk. niṣādayati] to cause to sit down, to make one be seated, to invite to a seat Ja.iii.392; Ja.vi.367; Pv-a.17, Pv-a.35 (there āsane); Mil.20. Cp. abhi˚, san˚.

Sk. niṣīdati, ni + sīdati