Boyd’s Bible Dictionary:
(a dumb dove of distant places). Title to, and probably melody of Psalm 56.
Concise Bible Dictionary:
Words signifying “dove of silence in far-off lands,” found only in the title of Psalm 56: its allusion is not known.
Strong’s Dictionary of Hebrew Words:
Meaning:
from 3123 and 482 and the plural of 7350; dove of (the) silence (i.e. dumb Israel) of (i.e. among) distances (i.e. strangers); the title of a ditty (used for a name of its melody)
KJV Usage:
Jonath-elem-rech okim
Jackson’s Dictionary of Scripture Proper Names:
the dove of silence among strangers (literally the dove of silence of distances)
Potts’ Bible Proper Names:
English form of a, Hebrew phrase; meaning, a dumb dove in distant places, Psa. 56: Title.