šbʕ / Semitic roots

a. Shavuot, from Hebrew šābûʕôt, plural of šābûaʕ, week, from šebaʕ, seven;;

b. shiva, from Hebrew šibʕâ, seven, feminine of šebaʕ (see above)..

a. Bathsheba, from Hebrew batšebaʕ, daughter of an oath (bat, daughter; see bn);;

b. Elizabeth, from Hebrew ʔĕlîšebaʕ, my God (is) an oath (ʔĕlî, my God; see ʔl);;

c. Beersheba, from Hebrew bəʔēr šebaʕ, well of oath (bəʔēr, well; see bʔr). a-c all from -šebaʕ, oath, from *šābaʕ, to swear, possibly denominative from šebaʕ, seven (? < "to bind oneself with sevens" in swearing oaths).