New American Bible
Not even for their father or mother, sister or brother, should they defile themselves, when these die, since their heads bear their dedication to God.

Douay-Rheims Bible
Neither shall he make himself unclean, even for his father, or for his mother, or for his brother, or for his sister, when they die, because the consecration of his God is upon his head.

Neither shall he make himself unclean, even for his father, or for his mother, or for his brother, or for his sister, when they die, because the consecration of his God is upon his head.

unclean

Numbers 9:6 But behold some who were unclean by occasion of the soul of a man, who could not make the phase on that day, coming to Moses and Aaron,

Leviticus 21:1,2,10-12 The Lord said also to Moses: Speak to the priests the sons of Aaron, and thou shalt say for them: Let not a priest incur an uncleanness at the death of his citizens. . . .

Ezekiel 44:25 And they shall come near no dead person, lest they be defiled, only their father and mother, and son and daughter, and brother and sister, that hath not had another husband: for whom they may become unclean.

Consecration.

1 Corinthians 11:10 Therefore ought the woman to have a power over her head, because of the angels.

by considering a married woman as a Nazarite for life, i.e. separated from all others, and united to her husband, to whom she is subject.