From badad; separate; adverb, separately -- alone, desolate, only, solitary.
see HEBREW badad
בָּדָד noun [masculine] isolation, separation: Isaiah 27:10 בָּדָד בְּצוּרָה עִיר the fenced city is isolation, i.e. is solitary (substantive for adjective : Dr§ 189. 2); more usually as adverb accusative, to signify alone, Deuteronomy 32:12; especially with verbs of dwelling, Leviticus 13:46 יֵשֵׁב בָּדָד he shall dwell alone (literally in isolation), Jeremiah 15:17; Lamentations 1:1; 3:28: figurative of freedom from attack, security Deuteronomy 33:28 (of Israel), Jeremiah 49:31 (Kedar); soלְבָדָד Numbers 23:9 (Israel) Micah 7:14; Psalm 4:9 for thou תּוֺשִׁיבֵנִי לָבֶטַח לְבָדָד makest me dwell solitarily, in safety (see Deuteronomy 33:28).
II. בדד (probably id quod בָּדָא q. v. talk idly).