English

influenceable

From influence + -able.

A compound of influence + -able

Latin fluō ‘to flow’

…

Latin īnfluēns ‘flowing into’

Medieval Latin īnfluentia

Old French influence ‘inundation; influence’

Middle English influence

Today it means

adj Capable of being influenced.

Language periods are conventional ranges, not dates for this word.

Etymograph / influenceable