Hebrew:לארב

From ארב:

Perfect, 3rd person, sing., masc.:

• to/for lied in wait (Strong 693)

Infinitive or sing. masc. participle:

• to/for laying in wait (Strong 693)
• to/for (person) laying in wait, an ambusher (Strong 693)

Noun, sing., masc.:

• to/for covert, to/for lair, to/for den, to/for ambuscade, to/for hiding place (Strong 695, Strong 696)
• to/for treachery, to/for deceit (fig.) (Strong 696)

Proper name, fem.:

• to/for Arab (= "ambush"), a city (does it mean Arabs in the modern sense of the word?)

Spaces Hypothesis with prefixes

לאר+ב:

• to became light in
• to shined in
• to became bright in
• to became light by
• to shined by
• to became bright by