Strong's #8029: shillesh (pronounced shil-laysh')
from 8027; a descendant of the third degree, i.e. great grandchild:--third (generation).
Brown-Driver-Briggs Hebrew Lexicon:
ּׁׁ
shillêsh
1) pertaining to the third, third (generation)
Part of Speech: adjective
Relation: from H8027
Usage:
This word is used 5 times:
Genesis 50:23: "saw Ephraim's children of the third generation: the children also of Machir the son"
Exodus 20:5: "upon the children unto the third and fourth generation of them that hate"
Exodus 34:7: "the children, and upon the children's children, unto the third and to the fourth"
Numbers 14:18: "the guilty, visiting the iniquity of the fathers upon the children unto the third and fourth"
Deuteronomy 5:9: "upon the children unto the third and fourth generation of them that hate"