בטל

The verb “to be invalid” is inherited from Proto-Semitic *baṭal-. For the geminate verb compare the same in Ge'ez በጠለ (bäṭṭälä) and Arabic بَطَّلَ‎ (baṭṭala).

בְּטַל • (bəṭal)

1. (intransitive) to cease
2. (intransitive) to be invalid

בַּטֵּל • (baṭṭēl)

1. (transitive) to make cease, stop, cancel

The verb “to be idle” is inherited from Proto-Semitic *baṭal-.

בָּטַל • (batál) (pa'al construction)

1. to cease to exist
2. to be idle

בָּטֵל • (batél) (feminine בְּטֵלָה‎, masculine plural בְּטֵלִים‎, feminine plural בְּטֵלוֹת‎)

1. worthless, valueless
2. invalid, null, void
3. (literary) unemployed

• דְּבָרִים בְּטֵלִים‎ (dvarim btelim)

בָּטֵל • (batél)

1. idly, aimlessly, purposelessly

בִּטֵּל • (bitél) (pi'el construction)

1. defective spelling of ביטל‎

בֻּטַּל • (butál) (pu'al construction)

1. defective spelling of בוטל‎