LATIN DICTIONARYLexicon Latīnum
adverb

sī̆remps

sī̆remps (not comparable)
Classical[siːˈrɛmps]Ecclesiastical[siˈrɛmps]

Meaning

  1. idiomaticnot comparablein precisely the same way (usually followed by quasi sī)
    1940, Marcus Valerius Probus, J. Baviera (ed.), Fontes Juris Romani Antejustiniani 3.1:PHI Latin Texts Litterae singulārēs in iūre cīvīlī dē lēgibus et plēbīscītīs . [...] S·R·L·R·I·C·Q·O·R·E si rem lēx rē<s> ius causaque omnium rērum estō… Let the legal and judicial powers in all things hold good exactly as if

sĭremps (sĭrempse, Plaut. Am. prol. 73), adj. acc. to Fest. pp. 344 and 345 Müll., contr. from similis re ipsā, qs. simrepsa, simrepse, and by transposition, sirempse; but prob. from si-, loc. form from pronom. stem sa-, cf. sic; rem is acc. of reference, cf. prope-diem, pri-dem; -pe is the intens. part., as in nem-pe, etc., and becomes pse, with enclit. se, as in ipse, etc., v. Corss. Ausspr. 2, 846 sq.; publicists' t. t., of a like application of laws,
I. like, the same: sirempse legem jussit esse Juppiter, Plaut. Am. prol. 73: siremps lex, S. C. ap. Front. Aquaed. 129; so Tab. Bantina, C. I. L. 197, 13; cf. id. 198, 73; 200, 27; 202, 1; 202, 38; 205, 2 al.; Lex ap. Grut. 508, 21; 628 fin.; 629, 1; Cato ap. Fest. 1. 1.: omnium quae terram premunt, siremps, lex esto, Sen. Ep. 91, 16; cf. Marin. Fratr. Arval. p. 568.

Origins

Univerbation of obscure make-up. The last element as in ipse; the first could be sī, originally meaning "in this", but if so we'd find the spelling sei in such an old legal formula, which we don't.

Quick answers

What does sī̆remps mean in Latin?
sī̆remps, a adverb, means “in precisely the same way (usually followed by quasi sī)”.
How do you pronounce sī̆remps?
In classical Latin, [siːˈrɛmps]; in ecclesiastical (church) Latin, [siˈrɛmps].