As a noun pair

is two similar or identical things taken together; often followed by of.

As a verb pair

is to group into sets of two or pair can be (obsolete) to impair.

As an adjective binate is

(botany) double; growing in pairs or couples.

Excrescency is a related term of excrescent.

As nouns the difference between excrescent and excrescency

is that excrescent is something growing, usually abnormally, out of something else while excrescency is an excrescent state or condition; the quality or fact of growing out of something; abnormal or excessive development; an example of this.

As an adjective excrescent

is growing out in an abnormal or morbid manner or as a superfluity.

As an adjective exuberant

is very high-spirited; extremely energetic and enthusiastic.

As a noun excrescency is

an excrescent state or condition; the quality or fact of growing out of something; abnormal or excessive development; an example of this.

As nouns the difference between outburst and excrescency

is that outburst is a sudden, often violent expression of emotion or activity while excrescency is an excrescent state or condition; the quality or fact of growing out of something; abnormal or excessive development; an example of this.

As a verb outburst

is to burst out.

As nouns the difference between extravagance and excrescency

is that extravagance is excessive or superfluous expenditure of money while excrescency is an excrescent state or condition; the quality or fact of growing out of something; abnormal or excessive development; an example of this.

Excrescency is a related term of excrescence.

As nouns the difference between excrescence and excrescency

is that excrescence is something, usually abnormal, which grows out of something else while excrescency is an excrescent state or condition; the quality or fact of growing out of something; abnormal or excessive development; an example of this.

Haplology is a related term of haplography.

As nouns the difference between haplology and haplography

is that haplology is (linguistics) the process of deleting one of two almost identical syllables within a word while haplography is accidental omission of a letter or letter group that should be repeated in writing, for example, mis'''pell'' for ''mi'''ss pell .

As an adjective unrecoverable

is not recoverable; that cannot be recovered.

As an adverb unrecoverably is

in an unrecoverable manner, or to an unrecoverable degree.

As adverbs the difference between differently and otherways

is that differently is in a different way while otherways is otherwise; by another means; differently; in other respects; contrarily.

As adverbs the difference between contrarily and otherways

is that contrarily is in a contrary manner; in opposite ways or directions while otherways is otherwise; by another means; differently; in other respects; contrarily.