Seti & sayati

to lie down, to sleep; (applied) to be in a condition, to dwell, behave etc
pres seti SN.i.41, SN.i.47, SN.i.198 (kiṃ sesi why do you lie asleep? Cp. Pv.ii.6#1); Ja.i.141; Dhp.79 Dhp.168; Snp.200; Vv-a.42; sayati Vin.i.57; Ja.ii.53; DN-a.i.261.
pot sayeyya Pv.ii.3,⁹ & saye Iti.120.
ppr sayaṃ Iti.82, Iti.117; Snp.193; sayāna (med.) DN.i.90; DN.ii.292; MN.i.57; Iti.117; Snp.1145; & semāna DN.ii.24; MN.i.88; SN.i.121; Ja.i.180; also sayamāna Thag.95
fut sessati SN.i.83; Snp.970; Dhp-a.i.320
aor sesi Ja.v.70 settha Snp.970; sayi Ja.vi.197, asayittha Ja.i.335
inf sayituṃ Pv-a.157;
ger sayitvā Ja.ii.77
pp sayita (q.v.)
caus 2 sayāpeti to make lie down, to bed on a couch etc. Ja.i.245; Ja.v.461; Mhvs.31, Mhvs.35; Pv-a.104
pp sayāpita
■ sukhaṃ seti to be at ease or happy SN.i.212; Ja.v.242 (raṭṭhaṃ i.e. is prosperous); opp dukkhaṃ s. to be miserable AN.i.137.

śī, Vedic śete & śayate; cp. Av. saēte = Gr. κεϊται to lie, ὠ κεανός (“ocean”) = Sk. ā-śayānah, κοιμάω to put to sleep; Ags. hāēman to marry; also Lat cīvis = citizen. The Dhtp simply defines as saya (374).