the arabic word for them, FALAJ (and its plural AFLAJ) are also useful scrabble words (lowish probability, but very useful when you do have them playable)
Look a few rows into the patterns table, and you start seeing fun rearrangements for patterns such as CaCaC -> ʼaCCāC, the example being sabab -> ʼasbāb.
It is one of the common plural forms. (In Arabic writing the words look even more similar, since it is only the three consonants, with diacritical marks above and below to represent the vowels.)