Elimelech [my God is King] his wife Naomi [my delight], who called herself Mara [bitter] after the loss of her husband and two sons [sick and pining]. 

Ruth [beauty, friendship] the moabites, the gentile daughter-in-law of Naomi that was redeemed by Boaz [strength, swiftness] by laying herself at his feet at the treshing floor.

Boaz the left pillar in the House of God and Jachin [he shall establish] the right pillar erected 2 Chr 3, 17 by Salomon [peaceable] from shalom [completeness, quiet, tranquillity, peace, friendship of human relationships/with God especially in covenant relationship]

The son of Ruth the substitute son to Naomi for the loss of her sons.
Ruth 4, 16 And Naomi took the child, and laid it in her bosom, and became nurse [Aman, foster-mother, support, nurse] unto it. 17 And the women her neighbours gave it a name, saying, There is a son born to Naomi; and they called his name Obed: he [is] the father of Isai, the father of David.

Obed [serving] from abad, to work, serve 

Isai/Jesse [my being, my existence, my substance, generally translated I possess, wealthy] from the root yesh [being, existence, substance] from Bethlehem [beth lechem, house of bread] Judah [praised].

David, beloved

Salomon [peaceable] the son of David and the promised son. 2 Sam 7, 13 He shall build an house for my name, and I will establish the throne of his kingdom for ever. 14 I will be his father, and he shall be my son. If he commit iniquity, I will chasten him with the rod of men, and with the stripes of the children of men:

serving my essence beloved peaceable [promised son]

The root and branch of Isai.