So In- negates right?<br>Inflamable? Infamous? Ingenious?<br><br>Your language is buggy. :p,(reply>), when you learn a new rule in english, throw it out of the window because it only applies half the time. <br>Most common ones are "I before E, except after c" but words like Neighbour,(reply>), Its not. In like in inflammable is just part of it's root. Ingenious too. For infamous though, you somewhat have a point. It instead has a pejorative sense, but it's still just exceptions. So learn your roots and prefixes.,(reply>), +Felipe Vasconcelos That's not Greek, though. "rudis" is Latin for "unformed, raw", and the prefix "e-/ex-" means "out of", an "eruditus" being someone who was brought out of being unformed, unschooled, raw.,(reply>), +Dive Like Junk +Tilman Baumann <br><br>The Latin prefix /in-/ has two meanings. Either its "non-" or "in/into/within-"<br><br>So, in|flamm|are has three morphemes. /flamma/ meaning flame, /in/ meaning in and /are/ which makes it a causative verb. So literally it means "cause to be in flames".<br><br>As for ingenious, it's "rich with" (-ous) /ingenium/. Now, /in|genium/ again has two morphemes. /genius/ means spirit. So an /in|genium/ is the "spirit within", i.e. your mind. So /in|geni|osus/ means "rich with mind", that is intelligent.<br><br>Infamous, is rather straight forward. Here /in-/ is the negation prefix and /fama/ means prestige. Therefore /in|fami/ are the ones without prestige.,(reply>), In Greek they also use e- :<br>Erudite: e (negation) + rude, so erudite means something that's not rude.<br><br>The hardest part of tracking languages morphemes is dealing with “false cognates”.