Communication

Translates to "with union". Communication is from the Latin "cum" meaning "with", and "unio" meaning "union".

Expect vs Suspect

The "spect" part of both these words is from the Latin "spectare" meaning "to look". The "ex" in "expect" is Latin meaning "out" so this word is used to describe things that should be looked out for in the future. The "sus" in "suspect" comes from the Latin "sub" meaning "from below" so is used to describe things with suspicion or mistrust.

Garlic

Translates to "spear leek". Garlic is an old English word combining "gar" meaning spear and "laec" meaning leek. Why spear? Because the shape of a clove of garlic resembles the shape of a spear.

Helicopter

Translates to "spiral wing". From the Ancient Greek word "helix" meaning spiral and the Ancient Greek word "pteron" meaning wing. Helicopter is a French word combining their word "helico" meaning helix with the "pter" of "pteron".

Psychopath

Translates to "soul suffering" from the Greek words "psyche" meaning "soul" and "pathos" meaning "suffering" or "feeling".

Recursion

Translates to "run back" and comes from the Latin word "recurrere". The "Re" is from Latin meaning "back" or "again", and the "cure" is from Latin "currere" meaning "to run".

Schizophrenia

Translates to "split mind". Schizophrenia is a Latin word with Ancient Greek origins made from "skhizein" meaning "to split" and "phrēn" meaning "mind".