There are 11 words that start with 'covar'.
| covary | covaried | covaries |
| covariant | covariate | covarying |
| covariance | covariates | covariances |
| covariation | covariations | |
Note: These 11 words that start with 'covar' are found from the USA & Canada version of the tournament Scrabble word list.