OpenEtymology

deepest

UKˈdiːpɪstUSˈdiːpɪst

Meaning

1adj

(superlative of deep) Extending far down from the top or surface.

2adj

(superlative of deep) Very intense, extreme, or profound.

Structure

word structure
1
deep
far down
+
2
est
superlative suffix

Usage

The submarine dove to the deepest part of the ocean trench.

Her poem expressed the deepest sorrow I have ever felt.

This is the deepest secret I have ever kept.

Etymology

The word 'deepest' is the superlative form of the adjective 'deep'. Its core morpheme, 'deep', originates from the Old English 'dēop', which itself descends from the Proto-Germanic 'deupaz', carrying the fundamental sense of depth, profundity, or extending far inward. This Germanic root is further traced back to the Proto-Indo-European base 'dheub-', meaning deep or hollow, a concept also evident in words like 'dive'. The suffix '-est' is the native English superlative marker, derived from Old English, used to denote the utmost degree of a quality. Thus, 'deepest' logically constructs its meaning by combining the ancient concept of profound depth with the grammatical marker for the highest extreme, evolving from a literal physical description to also encompass abstract intensities of feeling or thought.

Analysis

Structure
deep (far down) + est (superlative suffix)=deepfar down+estsuperlative suffix

- deep: From Old English 'dēop' (adjective), of Proto-Germanic origin; meaning profound, extending far down. - est: From Old English '-est', '-ost', the superlative suffix used to form the highest degree of adjectives and some adverbs.

Deepest Etymology, Origin & Meaning | wordDNA