Lexical Definition

‎בָּעָה‎ bâʻâh (baw-aw') to enquire H:V
a primitive root

cause, inquire, seek up, swell out.

1) to seek out, swell, cause to swell, boil up, enquire
1a) (Qal)
1a1) to seek, enquire
1a2) to cause to boil up
1b) (Niphal)
1b1) to be searched out
1b2) to be swelling, bulging, swelling out

See Greek: ζητέω · κατακαίω · καταλαμβάνω

Usage: 5 forms in 5 verses
Form Translated As     In Verse(s)
תִּבְעָי֥וּן you will enquire Isa.21.12
תִּבְעֶה it boils Isa.64.2
נִבְעֶ֖ה bulging Isa.30.13
נִבְע֖וּ they will be searched out Obad.1.6
בְּעָ֖יוּ enquire Isa.21.12

Brown-Driver-Briggs

[‎בָּעָה‎] verb inquire, cause to swell or boil up (Late Hebrew id; Arabic seek, suppurate, swell; Aramaic ‎בְּעָא‎, seek) —

Qal Imperfect 3 feminine singular ‎תִּבְעֶה‎ Isa 64:1* 2 masculine plural ‎תִּבְעָיוּן‎ Isa 21:12 Imperative ‎בְּעָיוּ‎ Isa 21:12
a. of rising desire, seek, inquire, absolute, of inquiring of prophet Isa 21:12 (twice in verse).

2. cause to boil up, ‎אֵֿשׁ‎‎׳‎‎מַיִם תִּב‎ Isa 64:1* (but gloss Che). Niph`al Perfect ‎נִבְעוּ‎ Obad 1:6 searched out (|| ‎נֶחְפְּשׂוּ‎); Participle ‎נִבְעֶה‎ Isa 30:13 swelling, swelling out (of decaying wall; Di swelling, enlarging, of crack in wall).

Brown-Driver-Briggs References

Book Refs
Isaiah 21:12 · 30:13 · 64:1*
Obadiah 1:6