שְׂאֹר sᵉʼôr

Hebrew · Strong's H7603 · pronounced seh-ore' · used 5 times in 5 verses

Meaning

barm or yeast-cake (as swelling by fermentation)

In the King James Version: leaven.

Derivation: from H7604 (שָׁאַר);

Exodus 12:15 For seven days you must eat unleavened bread. On the first day you are to remove the leaven from your houses. Whoever eats anything leavened from the first day through the seventh must be cut off from Israel.
Exodus 12:19 For seven days there must be no leaven found in your houses. If anyone eats something leavened, that person, whether a foreigner or native of the land, must be cut off from the congregation of Israel.
Exodus 13:7 Unleavened bread shall be eaten during those seven days. Nothing leavened may be found among you, nor shall leaven be found anywhere within your borders.
Leviticus 2:11 No grain offering that you present to the LORD may be made with leaven, for you are not to burn any leaven or honey as a food offering to the LORD.
Deuteronomy 16:4 No leaven is to be found in all your land for seven days, and none of the meat you sacrifice in the evening of the first day shall remain until morning.