5 words for FJK 1–3 letters

Filter answers for the "fjk" by length:
Sort
Alphabet (A–Z)
Alphabet (Z–A)
Scrabble score

1 letter (3)

f j k
Sort
Alphabet (A–Z)
Alphabet (Z–A)
Scrabble score

2 letters (1)

jk
Sort
Alphabet (A–Z)
Alphabet (Z–A)
Scrabble score

3 letters (1)

jfk
Archaic object pronoun
?
T
?
H
?
E
?
E
Hint 1 meaning
The objective case of thou. See Thou.
Hint 2 anagram
TEEH
Hint 3 another clue
BEING USED OR WORKED FOR THE FIRST TIME
19 +4