The Hebrew noun almenut refers to the ongoing condition of widowhood — the distinctive state marked by 'widow's garments' mentioned in Genesis 38 when Tamar covered herself with a veil and then returned to her widow's garments after her encounter with Judah.
Tamar's removal and return to almenut garments (Genesis 38) is one of Scripture's most complex stories of justice. Tamar had been wronged in the levirate system; Judah had failed his covenant duty. Her bold action secured the covenant line that would lead to David and to Christ (Matthew 1:3). Even the garments of widowhood carry redemptive significance in God's story — He weaves justice and grace through the most unexpected threads. What society marked as shameful, God used to preserve the messianic line.