Strong's #3173: yachiyd (pronounced yaw-kheed')
from 3161; properly, united, i.e. sole; by implication, beloved; also lonely; (feminine) the life (as not to be replaced):--darling, desolate, only (child, son), solitary.
Brown-Driver-Briggs Hebrew Lexicon:
yâchı̂yd
1) only, only one, solitary, one (adjective)
1a) only, unique, one
1b) solitary
1c) (TWOT) only begotten son
2) one (substantive)
Part of Speech: see above in Definition
Relation: from H3161
Usage:
This word is used 12 times:
Genesis 22:2: "thy son, thine only son Isaac, whom thou lovest,"
Genesis 22:12: "thy son, thine only son from"
Genesis 22:16: "withheld thy son, thine only"
Judges 11:34: "him with timbrels and with dances: and she was his only child; beside her he had neither son nor"
Psalms 22:20: "Deliver my soul from the sword; my darling from the power of the dog."
Psalms 25:16: "me, and have mercy upon me; for I am desolate"
Psalms 35:17: "rescue my soul from their destructions, my darling from the lions."
Psalms 68:6: "God setteth the solitary in families: he bringeth out those which are bound but"
Proverbs 4:3: "my father's son, tender and only of my mother."
Jeremiah 6:26: "in ashes: thee mourning, as for an only son, most bitter lamentation: for the spoiler"
Amos 8:10: "head; and I will make it as the mourning of an only son, and the end thereof as a bitter day."
Zechariah 12:10: "for him, as one mourneth for his only son, and shall be in bitterness for him, as one that is in bitterness for"