to hem is a form of:

Hem



noun
1.
(Border, esp. one made by sewing. the sound made in clearing the throat) ជាយសំពត់
Example: Mother hemmed the dress in, about, round.
verbpast tense: hemmed ; past participle: hemmed ; present participle: hemming ;
1.
(TRANSITIVE) (to fold back the edge of and sew down, to surround, to enclose, to encircle) hem a dress ចំដេរប៉ាក់ / ចំ (សំលៀកបំពាក់) / ដាក់កែមដាក់ហាម, hem in (the enemy) ព័ទ្ធជំវិញ
  • hem about around round
    - ព័ទ្ធ, រុំក្រសោម
  • hem in
    - កម្រិតសេរីភាព, ព័ទ្ធជុំវិញ
ENGLISH MEANING
noun
1.
The edge or border of a garment or cloth, doubled over and sewed, to strengthen raveling.
2.
Border; edge; margin.
3.
A border made on sheet-metal ware by doubling over the edge of the sheet, to stiffen it and remove the sharp edge.
4.
An utterance or sound of the voice, hem or hm, often indicative of hesitation or doubt, sometimes used to call attention.
verbpast tense: hemmed ; past participle: hemmed ; present participle: hemming ;
1.
(INTRANSITIVE) To make the sound expressed by the word hem; hence, to hesitate in speaking.
2.
(TRANSITIVE) To form a hem or border to; to fold and sew down the edge of.
Interjection
1.
An onomatopoetic word used as an expression of hesitation, doubt, etc. It is often a sort of voluntary half cough, loud or subdued, and would perhaps be better expressed by hm.
1.
To border, to edge
2.
Them