Proto-IE: *sēy-
Meaning: to linger
Latin: sētius, -a `weniger', sērus, -a `spät'
Celtic: *sēr-, *sēis, *sit- > OIr sīr `langdauernd, ewig', comp. sīa, sup. sīam, MIr sith- `lang, andauernd', comp. sithithir `ebenso lang'; OCymr hit `Länge', Cymr hir `lang', comp. hwy, sup. hwyaf, hyd `Länge, Fortdauer, Weile; usque ad'; hes `Länge', Corn hir `lang', Bret hir `lang', hed, het m. `Länge'
Russ. meaning: медлить
References: WP II 459 f