0 entries found: There are no genuine English suffixes that begin with the letter X. This list returns no results because English suffix inventories—compiled in authoritative references—do not include bound morphemes that start with the letter X. Note that the Greek-derived combining form xen- (xeno‑), which begins with x and appears in words like xenophobia, functions as a prefix or combining form, not a suffix.
Consult major references such as the Oxford English Dictionary, Merriam‑Webster, and standard morphology texts and accept that they do not record productive or historical English suffixes beginning with X. Understand that phonotactic and historical factors explain the gap: the letter X represents the consonant cluster /ks/, which rarely occurs at morpheme-initial positions, and most English suffixes descend from Latin, Old French, or Germanic sources where initial /ks/ clusters are uncommon or are realized differently in English orthography.
Consider related searches instead: look up prefixes and combining forms that start with X (for example xen‑/xeno‑), or search for suffixes that contain the letter x inside their spelling (chemical and borrowed terms often include x internally). Also check suffix inventories for other letters on the A–Z index, and consult language-specific resources if you seek bound morphemes beginning with X in non‑English languages (some languages use x for sounds like /ʃ/ and do have such suffixes).