Lexical Definition

‎זֶפֶת‎ zepheth (zeh'-feth) pitch H:N-F
from an unused root (meaning to liquify)

pitch.

1) pitch, tar, asphalt

Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
לְזֶ֖פֶת pitch Isa.34.9
לְזֶ֔פֶת into pitch Isa.34.9
וּבַזָּ֑פֶת and with pitch Exod.2.3

Brown-Driver-Briggs

‎זֶ֫פֶת‎ noun feminineIsa 34:9 pitch (compare on formative Ol§ 164 c) Sta§ 187 a. Word is Armenian according to LagArm. Stud. 1351, BN 219; on Egyptian derivatives compare CookSpeaker's Comm. i. 484; Arabic according to Frä151, if Shemitic, is Aramaic loan-word; see also Ethiopic Di1068) — pitch:‎וַתַּחְמְרָה בַחֵמָר וּבַזָּ֑פֶת‎ Exod 2:3 of ark of bulrushes; Isa 34:9 a ‎וְנֶחֶפְכוּ נְחָלֶיהָ לְזֶפֶת וַעֲפָרָהּ לְגָפְרִ֑ית‎, vIsa 34:9 b ‎והיתה אַרְצָהּ לְזֶפֶת בֹּעֵרָֽה׃‎.

Brown-Driver-Briggs References

Book Refs
Exodus 2:3
Isaiah 34:9