Lexical Definition

‎רָהַב‎ râhab (raw-hab') to be assertive H:V
a primitive root

overcome, behave self proudly, make sure, strengthen.

1) to behave proudly, act stormily or boisterously or arrogantly
1a) (Qal) to act insolently, storm against, beset, importune
1b) (Hiphil) to disturb, alarm, awe, confuse, make bold or proud

Usage: 4 forms in 4 verses
Form Translated As     In Verse(s)
תַּרְהִבֵ֖נִי you made bold me Ps.138.3
יִרְהֲב֗וּ they will act insolently Isa.3.5
וּרְהַ֥ב and importune Prov.6.3
הִרְהִיבֻ֑נִי they have confused me Song.6.5

Brown-Driver-Briggs

[‎רָהַב‎] verb act stormily, boisterously, arrogantly (Eccl 13:8 Late Hebrew id., Hiph`il make proud (rare), ᵑ7 ‎רְהֵב‎ be arrogant; Assyrian ra°âbu, storm at (angrily); Arabic be alarmed, frightened; Syriac , Pe`al Participle trembling, hastening, Aph`el terrify, hasten); —

Qal Imperfect 3 masculine plural ‎יִרְחֲבוּ הַנַּעַר‎ ‎בַּזָּקֵן‎ Isa 3:5 (|| ‎וְנִגַּשׂ‎) storm against (ᵐ5 προσκόψει); Imperative ‎רְהַב רֵעֶ(י)ךָ‎ Prov 6:3 beset, importune, thy friend (PerlesAnal. 61 conjecture ‎רְהַן‎ give surety, compare Late Hebrew ‎הרהין‎). Hiph`il Perfect 3 masculine plural suffix ‎הִרְהִיבֻ֑נִי‎ Song 6:5, of eyes, dubious: alarm me Hi Ew Bu, awe me Gi, disturb, confuse me, Oettli DrIntr. 419 (446) Buhl; Imperfect 2 masculine singular suffix ‎תַּרְהִבֵנִי‎ Ps 138:3 (subject ‎׳‎‎י‎), Buhl Bae Dr thou makest me proud, bold (Thes De Che denominative of ‎רֹהַב‎).

Brown-Driver-Briggs References

Book Refs
Psalms 138:3
Proverbs 6:3
Ecclesiastes 13:8
Song of Solomon 6:5
Isaiah 3:5