defrost
UK[ˌdiːˈfrɒst]US[ˌdiːˈfrɔːst]
v
To remove ice or frost from something, especially from a refrigerator or freezer.
v
To become free of ice or frost.
v
To thaw frozen food.
Morpheme Breakdown
de
frost
de
reverse
frost
ice crystals
Etymology
The word 'defrost' is a modern English formation, created by combining the Latin-derived reversing prefix 'de-' with the native English noun 'frost'. The logic is transparent and mechanical: to 'defrost' is literally to 'remove the frost'. The noun 'frost' itself has ancient Germanic roots, related to the verb 'freeze', and can be traced back to the Proto-Indo-European root preus-, meaning "to freeze" or "to burn" (with cold). The formation of 'defrost' follows a common 20th-century pattern of using classical prefixes on vernacular bases to create new technical or domestic verbs, perfectly capturing the action of reversing the frozen state, whether on a windshield or a package of food.
Analysis
Structure: de (reverse) + frost (ice crystals)
- de: A prefix of Latin origin, meaning "down from, off, away, reversing or undoing an action." In this word, it indicates the reversal of the state of being frosted.
- frost: A noun of Old English origin (from Proto-Germanic frustaz), meaning "a covering of ice crystals." Here, it functions as the base element representing the substance to be removed.
Examples
Remember to defrost the freezer at least once a year to keep it running efficiently.
It will take several hours for the chicken to defrost completely in the refrigerator.
The car's rear window has a heating element to help defrost it quickly on cold mornings.