In Orokolo there is a single word for both elbows and knees, so here it is necessary to say, “the elbows/knees of his legs.”
See also kneel down / fall down and worship.
knee, kneel
Language: Orokolo
Verse: Acts 20:36 · Acts 21:5 · Acts 7:60 · Acts 9:40 · John 11:32 · Luke 22:41 · Mark 1:40 · Mark 10:17 · Mark 15:19 · Matt 15:25 · Matt 17:14 · Matt 18:26 · Matt 2:11 · Matt 20:20 · Matt 27:29 · Matt 8:2 · Matt 9:18 · Pp 2:10 · Rom 14:11
Source: David Clark (UBS)