1. SI cl. 2. Ā. ( Dhātup. xxiv, 22 ) Se/te (with Guṇa throughout the pr. stem : thus, Sa/ye [in RV. also 3. sg. ], Se/ze &c., 3. pl. Se/rate [in AV. also Se/re and Class. Sayire ]; Pot. Sa/yIta , RV. &c.; Impv. SetAm and SayAm , AV. ; impf. aSeta , ŚBr. &c., 3. pl. aSerata [in RV. also a/Seran ], p. Sa/yAna , RV. &c.; Ved. and ep. also cl. 1. Sa/yate , °ti ; impf. a/Sayat and aSAyata , RV. ; pf. SiSye , SiSyire , Br. ; p. Ved. SaSayAna/ , Class. SiSyAna ; aor. aSayizwa Subj. Se/zan , RV. ; fut. SayitA , Up., 2. sg. °tA/se , ŚBr. ; Sayizyate , °ti , Br. ; Sezyate , °ti , MBh. ; inf. Saya/DyE , RV. ; Sayitum , MBh. ; ind.p. SayitvA , Up. &c.; -Sayya , Kāv. ), to lie, lie down, recline, rest, repose, RV. &c. &c.; to remain unused (as Soma ), TS. ; to lie down to sleep, fall asleep, sleep, GṛŚrS. ; MBh. &c.; (with patye ) to lie down to a husband (for sexual intercourse), Pat. ; ( madanena-√ SI = ‘to be impotent’), VarBṛS. : Pass. Sayyate Gr. ( aor. aSAyi , ib. , pr.p. once in MBh. SIyat ) : Caus. SAyayati , °te ( aor. aSISayat ), to cause to lie down, lay down, put, throw, fix on or in ( loc. ), MBh. ; Kāv. &c.; to cause to lie down, allow to rest or sleep, Bhaṭṭ. ; Rājat. ; BhP. : Desid. SiSayizate , to wish to rest or sleep, Daś. : Intens. SASayyate , SeSayIti , SeSeti Gr. [ cf. Gk. κεῖσθαι , ‘to lie’; κοίτη , ‘a bed’.]
3. SI (connected with √ 2. Sad ; cf. Pāṇ. vii, 3, 78 ) cl. 4. Ā. SIyate , to fall out or away, disappear, vanish, TBr. ; Bhaṭṭ.
SI 2 A. ( Sete, Sayita ; pass. Sayyate ; desid. SiSayizate ) 1 To lie, lie down, recline, rest; itaSca SaraRarTinaH SiKariRAM gaRAH Serate Bh. 2. 76. 2 To sleep ( fig. also); kiM niHSaMke Seze SezevayasaH samAgato mftyuH . aTavA suKaM SayITA nikawe jAgarti jAhavI jananI Bv. 4. 30 ; Bh. 3. 79 ; Ku. 5. 12. 3 ( pb ) To rest, repose. — Caus. ( SAyayati-te ) 1 To cause to sleep or lie down; pArSve SAyaya rAvaRaM Bk. 8. 83. 2 To allow to rest or repose.
SI 1 Sleep, repose. 2 Tranquillity.