ἀφίστανται. [2 verses](verb 3rd pl pres ind mp causal pres) "Fall away" is from aphistemi, which means "shall be absent", "shall be away from", and "shall desert".  - (CW, WV)  "Fall away" is a verb that means "shall be absent", "shall be away from", and "shall desert".  Though not a future tense, the verb describes something happening in the future The form is the middle voices, so "shall fall away by themselves." It is an uncommon verb for Jesus to use. He commonly uses other common words to say "fall away" or "depart". ---  CW --Confusing Word -- The action is in the future though the verb's tense is present. This an only be captured by the future tense in English. "  WV  --Wrong Voice - The verb in the middle voice requires the concept of "yourselves"  as its object or "by/for themselves."